Cleaning spending datasets from us spending

[Niklewa]

No description provided.

[rfl-urbaniak]

• add zeroes for control
• make sure the number of unique units is the same across all datasets, including gdp
• add unique fips code counting for all datasets to the tests

[Niklewa]

• add zeroes for control

  • make sure the number of unique units is the same across all datasets, including gdp

  • add unique fips code counting for all datasets to the tests

All done, testing works