Table C. Average quarterly level of gross job gains and gross job losses by firm size, third quarter 1992 - third quarter 2012, seasonally adjusted (In thousands) Size class (number of employees) Category Total 1 to 4 5 to 9 10 to 19 20 to 49 50 to 99 100 to 249 250 to 499 500 to 999 1,000 or more Gross job gains......... 6,308 942 736 757 900 569 609 368 301 1,126 At expanding firms.... 5,284 378 571 641 806 531 584 358 296 1,119 At opening firms...... 1,024 563 165 116 94 38 25 10 6 7 Gross job losses........ 6,049 923 723 738 868 543 573 345 283 1,053 At contracting firms.. 5,046 387 566 626 774 502 542 331 274 1,044 At closing firms...... 1,000 536 157 112 93 41 31 13 8 9 Net change.............. 259 19 13 19 32 26 36 23 18 73 Source: U.S. Bureau of Labor Statistics