Table 5. Number of private sector establishments by age Total Private Illinois Age Class March 1994 March 1995 March 1996 March 1997 March 1998 March 1999 Less than one year 22,976 25,038 23,576 20,201 22,296 21,672 1 year _ 18,743 19,874 19,408 16,318 18,413 2 years _ _ 16,079 17,510 16,996 14,264 3 years _ _ _ 14,462 15,878 15,300 4 years _ _ _ _ 13,343 14,512 5 years _ _ _ _ _ 12,177 6 years _ _ _ _ _ _ 7 years _ _ _ _ _ _ 8 years _ _ _ _ _ _ 9 years _ _ _ _ _ _ 10 years _ _ _ _ _ _ 11 years _ _ _ _ _ _ 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ Born before March 1993 208,762 195,345 181,250 171,333 162,711 154,587 Total 231,738 239,126 240,779 242,914 247,542 250,925 Age Class March 2000 March 2001 March 2002 March 2003 March 2004 March 2005 Less than one year 21,479 21,401 20,872 21,123 21,753 21,845 1 year 17,346 17,381 16,469 16,694 17,055 16,996 2 years 15,936 15,132 14,621 14,269 14,429 14,538 3 years 12,822 14,247 13,313 13,015 12,776 12,794 4 years 13,996 11,527 12,636 12,066 11,883 11,377 5 years 13,380 12,740 10,396 11,624 11,094 10,808 6 years 11,340 12,269 11,807 9,654 10,654 10,122 7 years _ 10,492 11,352 10,937 8,975 9,891 8 years _ _ 9,777 10,582 10,222 8,321 9 years _ _ _ 9,111 9,905 9,434 10 years _ _ _ _ 8,626 9,186 11 years _ _ _ _ _ 8,147 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ Born before March 1993 146,994 139,430 131,918 126,220 120,726 114,710 Total 253,293 254,619 253,161 255,295 258,098 258,169 Age Class March 2006 March 2007 March 2008 March 2009 March 2010 March 2011 Less than one year 24,311 22,449 19,846 19,016 19,293 18,425 1 year 17,168 19,156 17,277 14,922 14,415 14,958 2 years 15,028 14,964 16,276 14,419 12,590 12,610 3 years 13,147 13,529 13,176 14,031 12,645 11,375 4 years 11,723 12,063 12,141 11,621 12,458 11,585 5 years 10,651 10,833 10,961 10,801 10,473 11,520 6 years 10,049 9,818 9,961 9,863 9,816 9,763 7 years 9,577 9,395 9,161 9,012 9,107 9,159 8 years 9,325 8,979 8,736 8,369 8,332 8,537 9 years 7,884 8,799 8,461 8,071 7,758 7,821 10 years 8,981 7,498 8,252 7,925 7,463 7,294 11 years 8,806 8,531 7,269 7,695 7,398 7,079 12 years 7,819 8,325 8,135 6,775 7,207 7,109 13 years _ 7,377 7,879 7,627 6,343 6,885 14 years _ _ 7,081 7,373 7,238 6,023 15 years _ _ _ 6,723 7,030 7,054 16 years _ _ _ _ 6,389 6,770 17 years _ _ _ _ _ 6,089 Born before March 1993 111,318 107,130 103,379 98,985 95,367 92,530 Total 265,787 268,846 267,991 263,228 261,322 262,586 NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.