Import share of total supply
Imports divided by total supply, for the selected year. This is the import-dependence ranking.
Who the crop is grown for
Domestic demand (per capita availability times U.S. population) as a share of U.S. production. Low means the crop is grown largely for export. Above 100% means domestic demand exceeds domestic production, so the balance arrives as imports.
All commodities, selected year
Click a column head to sort. Click a row to open it on the time-series tab.
One commodity over time
Production, imports and domestic demand on a common axis, 1990 onward.
FADS commodity to reference.crop_identity
Each row is a distinct FADS subject needing a crop_id. Exact and alias matches are pre-selected but still require acceptance.
Export decisions
SQL writes into reference.crop_alias and stamps fads_series.crop_id, with match_method recording that a human reviewed it.
What this is built from
USDA ERS Food Availability (Per Capita) Data System and its Loss-Adjusted series, 34 of 36 published files, 393,087 raw observations, 6,570 parsed series, 179,471 spine facts. Public domain, 17 USC 105.
Caveats that travel with every figure
- Availability is not intake. FADS is disappearance data: production plus imports minus exports and non-food use. It runs roughly 700 kcal per day above what NHANES respondents report eating. The gap is loss plus under-reporting, combined and inseparable. Disclose it; do not split the difference.
- Per-file vintages, not one product date. A peanut figure comes from a file updated 2025-06-26; a dairy figure from one updated 2022-12-15. One blanket citation is wrong for most of the table.
- Series breaks are real. Summary estimates stop at 2010 because the Census Current Industrial Reports ended. Seven vegetables cannot be loss-adjusted past 2019. Fish and shellfish are mid-revision and the revised values will not be comparable to what was published before.
- Bases do not mix. In-shell and shelled are different denominators for the same crop. Ratios computed within one commodity string are safe; magnitudes across commodities need unit normalization first.
- National demand does not allocate to California. California grows for a national and export market. Route any state claim through production share, never through the geography of eaters.