measure_code	measure_text
001	Days of idleness (in 1,000s) from all work stoppages in effect in the period
002	Days of idleness (as % of total estimated working time) from work stoppages in effect in the period
010	Number of workers (in 1,000s) involved in all work stoppages beginning in the period
020	Number of workers (in 1,000s) involved in all work stoppages in effect in the period
100	Number of work stoppages involving 1,000 workers or more beginning in the period
200	Number of work stoppages involving 1,000 workers or more in effect in the period