Table 1.  Work stoppages involving 1,000 or more workers, 1947-2017
                                                                                             
                                                                                             
                                            Number of                      Days idle(2)      
                                              work      Numbers of                           
                                            stoppages     workers                            
                    Period                  beginning    involved                 Percent of 
                                               in      (thousands)-    Number      estimated 
                                             period         (1)      (thousands)    working  
                                                                                    time(3)  
                                                                                             
                                                                                             
      2017...............................        7            25           440        (4)    
      2016...............................       15            99         1,543        (4)    
      2015...............................       12            47           740        (4)    
      2014...............................       11            34           200        (4)    
      2013...............................       15            55           290        (4)    
                                                                                             
      2012...............................       19           148         1,131        (4)    
      2011...............................       19           113         1,020        (4)    
      2010...............................       11            45           302        (4)    
      2009...............................        5            13           124        (4)    
      2008...............................       15            72         1,954        .01    
                                                                                             
      2007...............................       21           189         1,265        (4)    
      2006...............................       20            70         2,688        .01    
      2005...............................       22           100         1,736        .01    
      2004...............................       17           171         3,344        .01    
      2003...............................       14           129         4,091        .01    
                                                                                             
      2002...............................       19            46           660        (4)    
      2001...............................       29            99         1,151        (4)    
      2000...............................       39           394        20,419        .06    
      1999...............................       17            73         1,996        .01    
      1998...............................       34           387         5,116        .02    
                                                                                             
      1997...............................       29           339         4,497        .01    
      1996...............................       37           273         4,889        .02    
      1995...............................       31           192         5,771        .02    
      1994...............................       45           322         5,021        .02    
      1993...............................       35           182         3,981        .01    
                                                                                             
      1992...............................       35           364         3,989        .01    
      1991...............................       40           392         4,584        .02    
      1990...............................       44           185         5,926        .02    
      1989...............................       51           452        16,996        .07    
      1988...............................       40           118         4,381        .02    
                                                                                             
      1987...............................       46           174         4,481        .02    
      1986...............................       69           533        11,861        .05    
      1985...............................       54           324         7,079        .03    
      1984...............................       62           376         8,499        .04    
      1983...............................       81           909        17,461        .08    
                                                                                             
      1982...............................       96           656         9,061        .04    
      1981...............................      145           729        16,908        .07    
      1980...............................      187           795        20,844        .09    
      1979...............................      235         1,021        20,409        .09    
      1978...............................      219         1,006        23,774        .11    
                                                                                             
      1977...............................      298         1,212        21,258        .10    
      1976...............................      231         1,519        23,962        .12    
      1975...............................      235           965        17,563        .09    
      1974...............................      424         1,796        31,809        .16    
      1973...............................      317         1,400        16,260        .08    
                                                                                             
      1972...............................      250           975        16,764        .09    
      1971...............................      298         2,516        35,538        .19    
      1970...............................      381         2,468        52,761        .29    
      1969...............................      412         1,576        29,397        .16    
      1968...............................      392         1,855        35,367        .20    
                                                                                             
      1967...............................      381         2,192        31,320        .18    
      1966...............................      321         1,300        16,000        .10    
      1965...............................      268           999        15,140        .10    
      1964...............................      246         1,183        16,220        .11    
      1963...............................      181           512        10,020        .07    
                                                                                             
      1962...............................      211           793        11,760        .08    
      1961...............................      195         1,031        10,140        .07    
      1960...............................      222           896        13,260        .09    
      1959...............................      245         1,381        60,850        .43    
      1958...............................      332         1,587        17,900        .13    
                                                                                             
      1957...............................      279           887        10,340        .07    
      1956...............................      287         1,370        26,840        .20    
      1955...............................      363         2,055        21,180        .16    
      1954...............................      265         1,075        16,630        .13    
      1953...............................      437         1,623        18,130        .14    
                                                                                             
      1952...............................      470         2,746        48,820        .38    
      1951...............................      415         1,462        15,070        .12    
      1950...............................      424         1,698        30,390        .26    
      1949...............................      262         2,537        43,420        .38    
      1948...............................      245         1,435        26,127        .22    
      1947...............................      270         1,629        25,720        (5)    

       1 Number of workers involved includes only those workers who participated in work
     stoppages that began in the calendar year. Workers are counted more than once if they
     are involved in more than one stoppage during the reference period. Numbers are rounded
     to the nearest thousand. 
       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 Percent of estimated working time is calculated using employment estimates from the
     Current Employment Statistics program and the number of workdays in the month and number
     of days idle from the Work Stoppages program.
       4 Less than .005. 
       5 Data not available.