diff --git a/requirements-dev.txt b/requirements-dev.txt
index a5c8561..3b4c079 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,34 +5,35 @@ agate==1.6.2
 appdirs==1.4.4; python_version >= "3.6"
 appnope==0.1.2; python_version >= "3.7" and python_version < "4.0" and sys_platform == "darwin"
 atomicwrites==1.4.0; python_version >= "3.6" and python_full_version < "3.0.0" and sys_platform == "win32" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6") or sys_platform == "win32" and python_version >= "3.6" and python_full_version >= "3.4.0" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6")
-attrs==20.3.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
-babel==2.9.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0"
+attrs==21.2.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
+babel==2.9.1; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0"
 backcall==0.2.0; python_version >= "3.7" and python_version < "4.0"
 black==20.8b1; python_version >= "3.6"
-certifi==2020.12.5; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
+certifi==2021.5.30; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 chardet==4.0.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
-click==7.1.2; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
+click==8.0.1; python_version >= "3.6"
 colorama==0.4.4; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
 csvkit==1.0.5
 dbfread==2.0.7
-decorator==5.0.7; python_version >= "3.7" and python_version < "4.0"
-et-xmlfile==1.0.1; python_version >= "3.6"
-flake8==3.9.0; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
+decorator==5.0.9; python_version >= "3.7" and python_version < "4.0"
+et-xmlfile==1.1.0; python_version >= "3.6"
+flake8==3.9.2; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
 ftfy==5.9; python_version >= "3.5"
-greenlet==1.0.0; python_version >= "3" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3"
+greenlet==1.1.0; python_version >= "3" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3"
 idna==2.10; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
-importlib-metadata==3.10.1; python_version < "3.8" and python_version >= "3.6" and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.5.0" and python_version < "3.8" and python_version >= "3.6") and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.4.0" and python_version >= "3.6" and python_version < "3.8") and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6") and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.6.0" and python_version < "3.8" and python_version >= "3.6")
+importlib-metadata==4.5.0; python_version < "3.8" and python_version >= "3.6" and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.5.0" and python_version < "3.8" and python_version >= "3.6") and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.4.0" and python_version >= "3.6" and python_version < "3.8") and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6") and (python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_full_version >= "3.6.0" and python_version < "3.8" and python_version >= "3.6")
 iniconfig==1.1.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 ipython-genutils==0.2.0; python_version >= "3.7" and python_version < "4.0"
-ipython==7.22.0; python_version >= "3.7" and python_version < "4.0"
+ipython==7.24.1; python_version >= "3.7" and python_version < "4.0"
 isodate==0.6.0
 isort==5.8.0; python_version >= "3.6" and python_version < "4.0"
 jedi==0.18.0; python_version >= "3.7" and python_version < "4.0"
 langid==1.1.6
 leather==0.3.3
+matplotlib-inline==0.1.2; python_version >= "3.7" and python_version < "4.0"
 mccabe==0.6.1; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 mypy-extensions==0.4.3; python_version >= "3.6"
-numpy==1.20.2; python_version >= "3.7" and python_full_version >= "3.7.1"
+numpy==1.20.3; python_version >= "3.7" and python_full_version >= "3.7.1"
 openpyxl==3.0.7; python_version >= "3.6"
 packaging==20.9; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 pandas==1.2.4; python_full_version >= "3.7.1"
@@ -48,29 +49,29 @@ py==1.10.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_
 pycodestyle==2.7.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 pycountry==19.8.18
 pyflakes==2.3.1; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
-pygments==2.8.1; python_version >= "3.7" and python_version < "4.0"
-pyicu==2.7.1
+pygments==2.9.0; python_version >= "3.7" and python_version < "4.0"
+pyicu==2.7.3
 pyparsing==2.4.7; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 pytest-clarity==0.3.0a0; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.4.0")
-pytest==6.2.3; python_version >= "3.6"
+pytest==6.2.4; python_version >= "3.6"
 python-dateutil==2.8.1; python_full_version >= "3.7.1"
-python-slugify==4.0.1; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
+python-slugify==5.0.2; python_version >= "3.6"
 python-stdnum==1.16
 pytimeparse==1.1.8
 pytz==2021.1; python_full_version >= "3.7.1"
 regex==2021.4.4; python_version >= "3.6"
 requests-cache==0.5.2
 requests==2.25.1; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
-six==1.15.0; python_full_version >= "3.7.1"
+six==1.16.0; python_full_version >= "3.7.1"
 spdx-license-list==0.5.2
-sqlalchemy==1.4.7; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.6.0"
+sqlalchemy==1.4.18; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.6.0"
 termcolor==1.1.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0"
-text-unidecode==1.3; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
+text-unidecode==1.3; python_version >= "3.6"
 toml==0.10.2; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 traitlets==5.0.5; python_version >= "3.7" and python_version < "4.0"
 typed-ast==1.4.3; python_version >= "3.6"
-typing-extensions==3.7.4.3; python_version < "3.8" and python_version >= "3.6"
-urllib3==1.26.4; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version < "4"
+typing-extensions==3.10.0.0; python_version < "3.8" and python_version >= "3.6"
+urllib3==1.26.5; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version < "4"
 wcwidth==0.2.5; python_version >= "3.7" and python_version < "4.0" and python_full_version >= "3.6.1"
 xlrd==1.2.0; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.4.0")
 zipp==3.4.1; python_version < "3.8" and python_version >= "3.6"
diff --git a/requirements.txt b/requirements.txt
index ef0b259..438b7c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
-certifi==2020.12.5; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
+certifi==2021.5.30; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 chardet==4.0.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 colorama==0.4.4; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
 ftfy==5.9; python_version >= "3.5"
 idna==2.10; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0"
 langid==1.1.6
-numpy==1.20.2; python_version >= "3.7" and python_full_version >= "3.7.1"
+numpy==1.20.3; python_version >= "3.7" and python_full_version >= "3.7.1"
 pandas==1.2.4; python_full_version >= "3.7.1"
 pycountry==19.8.18
 python-dateutil==2.8.1; python_full_version >= "3.7.1"
@@ -12,8 +12,8 @@ python-stdnum==1.16
 pytz==2021.1; python_full_version >= "3.7.1"
 requests-cache==0.5.2
 requests==2.25.1; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
-six==1.15.0; python_full_version >= "3.7.1"
+six==1.16.0; python_full_version >= "3.7.1"
 spdx-license-list==0.5.2
-urllib3==1.26.4; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version < "4"
+urllib3==1.26.5; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version < "4"
 wcwidth==0.2.5; python_version >= "3.5"
 xlrd==1.2.0; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.4.0")