Distribution of workers by size of establishment, March 1999 Size Percent Workers 1,000 or more workers 11.8 12,405,130 500 to 999 workers 7.3 7,738,141 250 to 499 workers 9.7 10,181,905 100 to 249 workers 16.5 17,413,467 50 to 99 workers 13.1 13,778,935 20 to 49 workers 16.5 17,424,497 10 to 19 workers 10.6 11,195,305 5 to 9 workers 8.1 8,529,064 Fewer than 5 workers 6.4 6,778,382 Figures are for all private-industry workers covered by State unemployment insurance programs.