Update exports data

[shawnbot]

Fixes #2031.

😎 Previews

• Connecticut
• Colorado
• Idaho
• Texas
• Utah
• Washington
• Wyoming

Changes proposed in this pull request:

• Update census exports data with 2012-2015 figures
• Use our more "liberal" interpretation of HS6 codes to categorize oil and gas exports
• Re-categorize mining exports except specific precious metals (iron, copper, and gold) as "non energy minerals"
• Further refine HS6 codes
• Double-check state figures with @mentastc
• Update data documentation --> Update exports data documentation #2097

/cc @coreycaitlin

[coreycaitlin]

Can we change to nonenergy (one word)? That's how we treat the term elsewhere.

[shawnbot]

@coreycaitlin fixed!

[coreycaitlin]

Note for this data: Census has slightly different numbers on their website than they have in the downloadable file.

[shawnbot]

We went over some of the HS6 categorizations with @mentastc, and as a result we're going to update this again. I'm adding the [WIP] flag back and will update the description and the data documentation accordingly.

[shawnbot]

@mentastc if you get a chance, can you review the preview links above (as well as any other states here) and let us know if they look right?

[gemfarmer]

@shawnbot where does this branch stand?

[shawnbot]

It looks like we were last waiting on a review from @mentastc.

[meiqimichelle]

Chatted with Chris, we think we're good on the data front. Might be at the last check box now -- update data documentation @shawnbot @gemfarmer

[meiqimichelle]

@coreycaitlin and I are moving the remaining documentation task to #2097 so we can get this merged and closed -- it is our last data fixit issue!!