# BLS survey `ep`

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

Survey documentation: `ep.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 |
|---|---|---|
| ep.aspect | 799782 | series_id, year, period, aspect_type, value, footnote_codes |
| ep.contacts | -1 |  |
| ep.data.1.AllData | 113898 | series_id, year, period, value, footnote_codes |
| ep.dates | 3 | data_source, base_year, proj_year |
| ep.display | 1 | disp_code, disp_desc |
| ep.eductrn | 9 | eductrn_code, eductrn_desc |
| ep.footnote | 0 | footnote_code, footnote_text |
| ep.industry | 423 | ind_code, ind_title, display_level, selectable, sort_sequence |
| ep.laytitle | 5811 | oes_code, lay_title |
| ep.occupation | 1112 | occ_code, occ_title, display_level, selectable, sort_sequence |
| ep.otjt | 7 | otjt_code, otjt_text |
| ep.rank | 1 | rank_code, rank_desc |
| ep.seasonal | 2 | seasonal_code, seasonal_text |
| ep.series | 113898 | series_id, seasonal, occ_type, ind_type, occ_code, ind_code, wkex_code, rank_code, otjt_code, eductrn_code, disp_code, series_title, footnote_codes, begin_year, begin_period, end_year, end_period |
| ep.wkex | 4 | wkex_code, wkex_text |