# BLS survey `hs`

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

Survey documentation: `hs.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 |
|---|---|---|
| hs.case.type | 9 | case_type_code, case_type_text |
| hs.contacts | 55 | Safety, Health, and Working Conditions Contacts |
| hs.data.1.1976to1980 | 76612 | series_id, year, period, value, footnote_codes |
| hs.data.2.1981to1984 | 66438 | series_id, year, period, value, footnote_codes |
| hs.data.3.1985to1988 | 63027 | series_id, year, period, value, footnote_codes |
| hs.data.type | 3 | data_type_code, data_type_text |
| hs.division | 11 | division_code, division_name |
| hs.industry | 822 | division_code, industry_code, industry_name |
| hs.period | 1 | period, period_abbr, period_name |
| hs.series | 18762 | series_id, division_code, industry_code, data_type_code, case_type_code, begin_year, begin_period, end_year, end_period |