Need to match countries between WB and CAIT databases

[jasonrwang]

While doing 812522f, I realized that country names do not match between the WB and CAIT databases. If we remove WB entirely, this will be fine.. but we need to use 'two' databases.

For example, one uses 'USA' and the other ' United States of America'. Though the conversion factor I was supposed to do is now done, it is very obviously incorrect! I think the biggest reason is that the US is missing in the analysis.

These country names need to be matched.

I've committed and pushed everything up. If we do get rid of WB database entirely, then we will run into a bit of an issue.

• [ ] Keep WB
• [ ] Remove WB
• [x] Keep WB but don't use it for analysis (make this note as a 'discovery' or insight).

[jasonrwang]

I made a small change to at least only calculate the conversion factor based on CAIT-only data (see e716e8d).