# BLS survey `ei`

Source: U.S. Bureau of Labor Statistics, LABSTAT time-series database (https://download.bls.gov/pub/time.series/ei/). Public domain U.S. government data. Credit: U.S. Bureau of Labor Statistics.

Survey documentation: `ei.txt`.

`*_series.parquet` defines each series_id (labels); `*_data_*.parquet` holds series_id, year, period (M01-M12 monthly, Q0x quarterly, A01/M13 annual), value, footnote_codes; other files map codes to labels.

| file | rows | columns |
|---|---|---|
| ei.contacts | 7 | International Price Indexes Contacts |
| ei.data.0.Current | 215051 | series_id, year, period, value, footnote_codes |
| ei.data.01.BEAImport | 47859 | series_id, year, period, value, footnote_codes |
| ei.data.02.BEAExport | 36469 | series_id, year, period, value, footnote_codes |
| ei.data.03.NAICSImport | 26290 | series_id, year, period, value, footnote_codes |
| ei.data.04.NAICSExport | 17132 | series_id, year, period, value, footnote_codes |
| ei.data.05.HarmonizedImport | 30714 | series_id, year, period, value, footnote_codes |
| ei.data.06.HarmonizedExport | 19892 | series_id, year, period, value, footnote_codes |
| ei.data.07.LocalityofOrigin | 36856 | series_id, year, period, value, footnote_codes |
| ei.data.08.LocalityofDestination | 2553 | series_id, year, period, value, footnote_codes |
| ei.data.09.TermsofTrade | 945 | series_id, year, period, value, footnote_codes |
| ei.data.10.ServicesImport | 2823 | series_id, year, period, value, footnote_codes |
| ei.data.11.ServicesExport | 3420 | series_id, year, period, value, footnote_codes |
| ei.data.12.ServicesInbound | 877 | series_id, year, period, value, footnote_codes |
| ei.data.13.ServicesOutbound | 861 | series_id, year, period, value, footnote_codes |
| ei.footnote | 7 | footnote_code, footnote_text |
| ei.index | 13 | index_code, index_name |
| ei.period | 12 | period, period_abbr, period_name |
| ei.seasonal | 2 | seasonal_code, seasonal_text |
| ei.series | 1593 | series_id, seasonal, index_code, series_name, base_period, series_title, footnote_codes, begin_year, begin_period, end_year, end_period |