Table 1. Work Stoppages Involving 1,000 or More Workers, 1947-2005
Period Number of stoppages beginning in period Number of workers involved(1) (in thousands) Number of days idle(2) (in thousands) Percent of estimated working time(3)

1947

270 1,629 25,720 (4)

1948

245 1,435 26,127 0.22

1949

262 2,537 43,420 0.38

1950

424 1,698 30,390 0.26

1951

415 1,462 15,070 0.12

1952

470 2,746 48,820 0.38

1953

437 1,623 18,130 0.14

1954

265 1,075 16,630 0.13

1955

363 2,055 21,180 0.16

1956

287 1,370 26,840 0.20

1957

279 887 10,340 0.07

1958

332 1,587 17,900 0.13

1959

245 1,381 60,850 0.43

1960

222 896 13,260 0.09

1961

195 1,031 10,140 0.07

1962

211 793 11,760 0.08

1963

181 512 10,020 0.07

1964

246 1,183 16,220 0.11

1965

268 999 15,140 0.10

1966

321 1,300 16,000 0.10

1967

381 2,192 31,320 0.18

1968

392 1,855 35,367 0.20

1969

412 1,576 29,397 0.16

1970

381 2,468 52,761 0.29

1971

298 2,516 35,538 0.19

1972

250 975 16,764 0.09

1973

317 1,400 16,260 0.08

1974

424 1,796 31,809 0.16

1975

235 965 17,563 0.09

1976

231 1,519 23,962 0.12

1977

298 1,212 21,258 0.10

1978

219 1,006 23,774 0.11

1979

235 1,021 20,409 0.09

1980

187 795 20,844 0.09

1981

145 729 16,908 0.07

1982

96 656 9,061 0.04

1983

81 909 17,461 0.08

1984

62 376 8,499 0.04

1985

54 324 7,079 0.03

1986

69 533 11,861 0.05

1987

46 174 4,481 0.02

1988

40 118 4,381 0.02

1989

51 452 16,996 0.07

1990

44 185 5,926 0.02

1991

40 392 4,584 0.02

1992

35 364 3,989 0.01

1993

35 182 3,981 0.01

1994

45 322 5,021 0.02

1995

31 192 5,771 0.02

1996

37 273 4,889 0.02

1997

29 339 4,497 0.01

1998

34 387 5,116 0.02

1999

17 73 1,996 0.01

2000

39 394 20,419 0.06

2001

29 99 1,151 (5)

2002

19 46 660 (5)

2003

14 129 4,091 0.01

2004

17 171 3,344 0.01

2005

22 100 1,736 0.01

Footnotes:
(1) Workers are counted more than once if they are involved in more than one stoppage during the reference period.
(2) Days idle includes all stoppages in effect during the reference period. For work stoppages that are still ongoing at the end of the calendar year, only those days of idleness in the calendar year are counted.
(3) Agricultural and government employees are included in the calculation of estimated working time; private households, forestry, and fishery employees are excluded.
(4) Data are not available.
(5) Less than 0.005.