diff --git a/Pipfile.lock b/Pipfile.lock
index 98e9519..548c554 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -33,11 +33,11 @@
         },
         "docutils": {
             "hashes": [
-                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
-                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
-                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
+                "sha256:6c4f696463b79f1fb8ba0c594b63840ebd41f059e92b31957c46b74a4599b6d0",
+                "sha256:9e4d7ecfc600058e07ba661411a2b7de2fd0fafa17d1a7f7361cd47b1175c827",
+                "sha256:a2aeea129088da402665e92e0b25b04b073c04b2dce4ab65caaa38b7ce2e1a99"
             ],
-            "version": "==0.14"
+            "version": "==0.15.2"
         },
         "lockfile": {
             "hashes": [
@@ -48,44 +48,31 @@
         },
         "luigi": {
             "hashes": [
-                "sha256:3dedb6f6b4f4687c00f7cb3e9d31d030414a64fa3fcb0eaca2df0c8af143bc0c"
+                "sha256:29217429782eed4885e312103f25cedb1a63fdae4773c68e368a55eacca2c9a0"
             ],
             "index": "pypi",
-            "version": "==2.7.9"
+            "version": "==2.8.0"
         },
         "numpy": {
             "hashes": [
-                "sha256:1b1cf8f7300cf7b11ddb4250b3898c711a6187df05341b5b7153db23ffe5d498",
-                "sha256:27a0d018f608a3fe34ac5e2b876f4c23c47e38295c47dd0775cc294cd2614bc1",
-                "sha256:3fde172e28c899580d32dc21cb6d4a1225d62362f61050b654545c662eac215a",
-                "sha256:497d7c86df4f85eb03b7f58a7dd0f8b948b1f582e77629341f624ba301b4d204",
-                "sha256:4e28e66cf80c09a628ae680efeb0aa9a066eb4bb7db2a5669024c5b034891576",
-                "sha256:58be95faf0ca2d886b5b337e7cba2923e3ad1224b806a91223ea39f1e0c77d03",
-                "sha256:5b4dfb6551eaeaf532054e2c6ef4b19c449c2e3a709ebdde6392acb1372ecabc",
-                "sha256:63f833a7c622e9082df3cbaf03b4fd92d7e0c11e2f9d87cb57dbf0e84441964b",
-                "sha256:71bf3b7ca15b1967bba3a1ef6a8e87286382a8b5e46ac76b42a02fe787c5237d",
-                "sha256:733dc5d47e71236263837825b69c975bc08728ae638452b34aeb1d6fa347b780",
-                "sha256:82f00a1e2695a0e5b89879aa25ea614530b8ebdca6d49d4834843d498e8a5e92",
-                "sha256:866bf72b9c3bfabe4476d866c70ee1714ad3e2f7b7048bb934892335e7b6b1f7",
-                "sha256:8aeac8b08f4b8c52129518efcd93706bb6d506ccd17830b67d18d0227cf32d9e",
-                "sha256:8d2cfb0aef7ec8759736cce26946efa084cdf49797712333539ef7d135e0295e",
-                "sha256:981224224bbf44d95278eb37996162e8beb6f144d2719b144e86dfe2fce6c510",
-                "sha256:981daff58fa3985a26daa4faa2b726c4e7a1d45178100125c0e1fdaf2ac64978",
-                "sha256:9ad36dbfdbb0cba90a08e7343fadf86f43cf6d87450e8d2b5d71d7c7202907e4",
-                "sha256:a251570bb3cb04f1627f23c234ad09af0e54fc8194e026cf46178f2e5748d647",
-                "sha256:b5ff7dae352fd9e1edddad1348698e9fea14064460a7e39121ef9526745802e6",
-                "sha256:c898f9cca806102fcacb6309899743aa39efb2ad2a302f4c319f54db9f05cd84",
-                "sha256:cf4b970042ce148ad8dce4369c02a4078b382dadf20067ce2629c239d76460d1",
-                "sha256:d1569013e8cc8f37e9769d19effdd85e404c976cd0ca28a94e3ddc026c216ae8",
-                "sha256:dca261e85fe0d34b2c242ecb31c9ab693509af2cf955d9caf01ee3ef3669abd0",
-                "sha256:ec8bf53ef7c92c99340972519adbe122e82c81d5b87cbd955c74ba8a8cd2a4ad",
-                "sha256:f2e55726a9ee2e8129d6ce6abb466304868051bcc7a09d652b3b07cd86e801a2",
-                "sha256:f4dee74f2626c783a3804df9191e9008946a104d5a284e52427a53ff576423cb",
-                "sha256:f592fd7fe1f20b5041928cce1330937eca62f9058cb41e69c2c2d83cffc0d1e3",
-                "sha256:ffab5b80bba8c86251291b8ce2e6c99a61446459d4c6637f5d5cc8c9ce37c972"
-            ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.1.*' and python_version >= '2.7' and python_version != '3.3.*'",
-            "version": "==1.15.2"
+                "sha256:05dbfe72684cc14b92568de1bc1f41e5f62b00f714afc9adee42f6311738091f",
+                "sha256:0d82cb7271a577529d07bbb05cb58675f2deb09772175fab96dc8de025d8ac05",
+                "sha256:10132aa1fef99adc85a905d82e8497a580f83739837d7cbd234649f2e9b9dc58",
+                "sha256:12322df2e21f033a60c80319c25011194cd2a21294cc66fee0908aeae2c27832",
+                "sha256:16f19b3aa775dddc9814e02a46b8e6ae6a54ed8cf143962b4e53f0471dbd7b16",
+                "sha256:3d0b0989dd2d066db006158de7220802899a1e5c8cf622abe2d0bd158fd01c2c",
+                "sha256:438a3f0e7b681642898fd7993d38e2bf140a2d1eafaf3e89bb626db7f50db355",
+                "sha256:5fd214f482ab53f2cea57414c5fb3e58895b17df6e6f5bca5be6a0bb6aea23bb",
+                "sha256:73615d3edc84dd7c4aeb212fa3748fb83217e00d201875a47327f55363cef2df",
+                "sha256:7bd355ad7496f4ce1d235e9814ec81ee3d28308d591c067ce92e49f745ba2c2f",
+                "sha256:7d077f2976b8f3de08a0dcf5d72083f4af5411e8fddacd662aae27baa2601196",
+                "sha256:a4092682778dc48093e8bda8d26ee8360153e2047826f95a3f5eae09f0ae3abf",
+                "sha256:b458de8624c9f6034af492372eb2fee41a8e605f03f4732f43fc099e227858b2",
+                "sha256:e70fc8ff03a961f13363c2c95ef8285e0cf6a720f8271836f852cc0fa64e97c8",
+                "sha256:ee8e9d7cad5fe6dde50ede0d2e978d81eafeaa6233fb0b8719f60214cf226578",
+                "sha256:f4a4f6aba148858a5a5d546a99280f71f5ee6ec8182a7d195af1a914195b21a2"
+            ],
+            "version": "==1.17.2"
         },
         "pandas": {
             "hashes": [
@@ -128,34 +115,42 @@
         },
         "python-dateutil": {
             "hashes": [
-                "sha256:1adb80e7a782c12e52ef9a8182bebeb73f1d7e24e374397af06fb4956c8dc5c0",
-                "sha256:e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8"
+                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
+                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
             ],
-            "version": "==2.7.3"
+            "version": "==2.8.0"
         },
         "pytz": {
             "hashes": [
-                "sha256:a061aa0a9e06881eb8b3b2b43f05b9439d6583c206d0a6c340ff72a7b6669053",
-                "sha256:ffb9ef1de172603304d9d2819af6f5ece76f2e85ec10692a524dd876e72bf277"
+                "sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32",
+                "sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7"
             ],
-            "version": "==2018.5"
+            "version": "==2019.2"
         },
         "pyyaml": {
             "hashes": [
-                "sha256:254bf6fda2b7c651837acb2c718e213df29d531eebf00edb54743d10bcb694eb",
-                "sha256:3108529b78577327d15eec243f0ff348a0640b0c3478d67ad7f5648f93bac3e2",
-                "sha256:3c17fb92c8ba2f525e4b5f7941d850e7a48c3a59b32d331e2502a3cdc6648e76",
-                "sha256:8d6d96001aa7f0a6a4a95e8143225b5d06e41b1131044913fecb8f85a125714b",
-                "sha256:c8a88edd93ee29ede719080b2be6cb2333dfee1dccba213b422a9c8e97f2967b"
-            ],
-            "version": "==4.2b4"
+                "sha256:0113bc0ec2ad727182326b61326afa3d1d8280ae1122493553fd6f4397f33df9",
+                "sha256:01adf0b6c6f61bd11af6e10ca52b7d4057dd0be0343eb9283c878cf3af56aee4",
+                "sha256:5124373960b0b3f4aa7df1707e63e9f109b5263eca5976c66e08b1c552d4eaf8",
+                "sha256:5ca4f10adbddae56d824b2c09668e91219bb178a1eee1faa56af6f99f11bf696",
+                "sha256:7907be34ffa3c5a32b60b95f4d95ea25361c951383a894fec31be7252b2b6f34",
+                "sha256:7ec9b2a4ed5cad025c2278a1e6a19c011c80a3caaac804fd2d329e9cc2c287c9",
+                "sha256:87ae4c829bb25b9fe99cf71fbb2140c448f534e24c998cc60f39ae4f94396a73",
+                "sha256:9de9919becc9cc2ff03637872a440195ac4241c80536632fffeb6a1e25a74299",
+                "sha256:a5a85b10e450c66b49f98846937e8cfca1db3127a9d5d1e31ca45c3d0bef4c5b",
+                "sha256:b0997827b4f6a7c286c01c5f60384d218dca4ed7d9efa945c3e1aa623d5709ae",
+                "sha256:b631ef96d3222e62861443cc89d6563ba3eeb816eeb96b2629345ab795e53681",
+                "sha256:bf47c0607522fdbca6c9e817a6e81b08491de50f3766a7a0e6a5be7905961b41",
+                "sha256:f81025eddd0327c7d4cfe9b62cf33190e1e736cc6e97502b3ec425f574b3e7a8"
+            ],
+            "version": "==5.1.2"
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
         },
         "structlog": {
             "hashes": [
@@ -223,18 +218,17 @@
         },
         "atomicwrites": {
             "hashes": [
-                "sha256:0312ad34fcad8fac3704d441f7b317e50af620823353ec657a53e981f92920c0",
-                "sha256:ec9ae8adaae229e4f8446952d204a3e4b5fdd2d099f9be3aaf556120135fb3ee"
+                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
+                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
             ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.1.*' and python_version >= '2.7'",
-            "version": "==1.2.1"
+            "version": "==1.3.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69",
-                "sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb"
+                "sha256:ec20e7a4825331c1b5ebf261d111e16fa9612c1f7a5e1f884f12bd53a664dfd2",
+                "sha256:f913492e1663d3c36f502e5e9ba6cd13cf19d7fab50aa13239e420fef95e1396"
             ],
-            "version": "==18.2.0"
+            "version": "==19.2.0"
         },
         "black": {
             "hashes": [
@@ -249,7 +243,6 @@
                 "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
                 "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
             ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.1.*' and python_version >= '2.7'",
             "version": "==7.0"
         },
         "colorama": {
@@ -266,13 +259,27 @@
             ],
             "version": "==0.6.2"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:aa18d7378b00b40847790e7c27e11673d7fed219354109d0e7b9e5b25dc3ad26",
+                "sha256:d5f18a79777f3aa179c145737780282e27b508fc8fd688cb17c7a813e8bd39af"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==0.23"
+        },
         "more-itertools": {
             "hashes": [
-                "sha256:c187a73da93e7a8acc0001572aebc7e3c69daf7bf6881a2cea10650bd4420092",
-                "sha256:c476b5d3a34e12d40130bc2f935028b5f636df8f372dc2c1c01dc19681b2039e",
-                "sha256:fcbfeaea0be121980e15bc97b3817b5202ca73d0eae185b4550cbfce2a3ebb3d"
+                "sha256:409cd48d4db7052af495b09dec721011634af3753ae1ef92d2b32f73a745f832",
+                "sha256:92b8c4b06dac4f0611c0729b2f2ede52b2e1bac1ab48f089c7ddc12e26bb60c4"
             ],
-            "version": "==4.3.0"
+            "version": "==7.2.0"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:28b924174df7a2fa32c1953825ff29c61e2f5e082343165438812f00d3a7fc47",
+                "sha256:d9551545c6d761f3def1677baf08ab2a3ca17c56879e70fecba2fc4dde4ed108"
+            ],
+            "version": "==19.2"
         },
         "pathtools": {
             "hashes": [
@@ -282,27 +289,31 @@
         },
         "pluggy": {
             "hashes": [
-                "sha256:6e3836e39f4d36ae72840833db137f7b7d35105079aee6ec4a62d9f80d594dd1",
-                "sha256:95eb8364a4708392bae89035f45341871286a333f749c3141c20573d2b3876e1"
+                "sha256:0db4b7601aae1d35b4a033282da476845aa19185c1e6964b25cf324b5e4ec3e6",
+                "sha256:fa5fa1622fa6dd5c030e9cad086fa19ef6a0cf6d7a2d12318e10cb49d6d68f34"
             ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.1.*' and python_version >= '2.7'",
-            "version": "==0.7.1"
+            "version": "==0.13.0"
         },
         "py": {
             "hashes": [
-                "sha256:06a30435d058473046be836d3fc4f27167fd84c45b99704f2fb5509ef61f9af1",
-                "sha256:50402e9d1c9005d759426988a492e0edaadb7f4e68bcddfea586bc7432d009c6"
+                "sha256:64f65755aee5b381cea27766a3a147c3f15b9b6b9ac88676de66ba2ae36793fa",
+                "sha256:dc639b046a6e2cff5bbe40194ad65936d6ba360b52b3c3fe1d08a82dd50b5e53"
+            ],
+            "version": "==1.8.0"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80",
+                "sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4"
             ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.1.*' and python_version >= '2.7'",
-            "version": "==1.6.0"
+            "version": "==2.4.2"
         },
         "pytest": {
             "hashes": [
-                "sha256:7e258ee50338f4e46957f9e09a0f10fb1c2d05493fa901d113a8dafd0790de4e",
-                "sha256:9332147e9af2dcf46cd7ceb14d5acadb6564744ddff1fe8c17f0ce60ece7d9a2"
+                "sha256:13c1c9b22127a77fc684eee24791efafcef343335d855e3573791c68588fe1a5",
+                "sha256:d8ba7be9466f55ef96ba203fc0f90d0cf212f2f927e69186e1353e30bc7f62e5"
             ],
-            "markers": "python_version != '3.0.*' and python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.1.*' and python_version >= '2.7'",
-            "version": "==3.8.2"
+            "version": "==5.2.0"
         },
         "pytest-watch": {
             "hashes": [
@@ -313,20 +324,28 @@
         },
         "pyyaml": {
             "hashes": [
-                "sha256:254bf6fda2b7c651837acb2c718e213df29d531eebf00edb54743d10bcb694eb",
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-                "sha256:3c17fb92c8ba2f525e4b5f7941d850e7a48c3a59b32d331e2502a3cdc6648e76",
-                "sha256:8d6d96001aa7f0a6a4a95e8143225b5d06e41b1131044913fecb8f85a125714b",
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-            ],
-            "version": "==4.2b4"
+                "sha256:0113bc0ec2ad727182326b61326afa3d1d8280ae1122493553fd6f4397f33df9",
+                "sha256:01adf0b6c6f61bd11af6e10ca52b7d4057dd0be0343eb9283c878cf3af56aee4",
+                "sha256:5124373960b0b3f4aa7df1707e63e9f109b5263eca5976c66e08b1c552d4eaf8",
+                "sha256:5ca4f10adbddae56d824b2c09668e91219bb178a1eee1faa56af6f99f11bf696",
+                "sha256:7907be34ffa3c5a32b60b95f4d95ea25361c951383a894fec31be7252b2b6f34",
+                "sha256:7ec9b2a4ed5cad025c2278a1e6a19c011c80a3caaac804fd2d329e9cc2c287c9",
+                "sha256:87ae4c829bb25b9fe99cf71fbb2140c448f534e24c998cc60f39ae4f94396a73",
+                "sha256:9de9919becc9cc2ff03637872a440195ac4241c80536632fffeb6a1e25a74299",
+                "sha256:a5a85b10e450c66b49f98846937e8cfca1db3127a9d5d1e31ca45c3d0bef4c5b",
+                "sha256:b0997827b4f6a7c286c01c5f60384d218dca4ed7d9efa945c3e1aa623d5709ae",
+                "sha256:b631ef96d3222e62861443cc89d6563ba3eeb816eeb96b2629345ab795e53681",
+                "sha256:bf47c0607522fdbca6c9e817a6e81b08491de50f3766a7a0e6a5be7905961b41",
+                "sha256:f81025eddd0327c7d4cfe9b62cf33190e1e736cc6e97502b3ec425f574b3e7a8"
+            ],
+            "version": "==5.1.2"
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
         },
         "toml": {
             "hashes": [
@@ -342,6 +361,20 @@
             ],
             "index": "pypi",
             "version": "==0.9.0"
+        },
+        "wcwidth": {
+            "hashes": [
+                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
+                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+            ],
+            "version": "==0.1.7"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:3718b1cbcd963c7d4c5511a8240812904164b7f381b647143a89d3b98f9bcd8e",
+                "sha256:f06903e9f1f43b12d371004b4ac7b06ab39a44adc747266928ae6debfa7b3335"
+            ],
+            "version": "==0.6.0"
         }
     }
 }