Table 5. Number of private sector establishments by age Total Private Pennsylvania Age Class March 1994 March 1995 March 1996 March 1997 March 1998 March 1999 Less than one year 18,925 17,897 19,005 21,999 23,954 21,045 1 year _ 15,909 14,507 15,764 17,971 19,939 2 years _ _ 13,909 12,664 13,829 15,879 3 years _ _ _ 12,603 11,353 12,382 4 years _ _ _ _ 11,438 10,332 5 years _ _ _ _ _ 10,503 6 years _ _ _ _ _ _ 7 years _ _ _ _ _ _ 8 years _ _ _ _ _ _ 9 years _ _ _ _ _ _ 10 years _ _ _ _ _ _ 11 years _ _ _ _ _ _ 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ Born before March 1993 208,449 197,540 184,719 173,563 164,306 154,898 Total 227,374 231,346 232,140 236,593 242,851 244,978 Age Class March 2000 March 2001 March 2002 March 2003 March 2004 March 2005 Less than one year 24,084 22,076 23,951 20,665 20,054 22,264 1 year 17,374 20,012 16,872 19,138 16,679 16,435 2 years 17,587 15,361 17,473 14,684 16,765 15,073 3 years 14,368 15,959 13,688 15,620 13,437 15,442 4 years 11,343 13,197 14,518 12,676 14,594 12,552 5 years 9,520 10,543 12,148 13,377 11,780 13,783 6 years 9,827 8,846 9,754 11,221 12,546 11,168 7 years _ 9,205 8,163 9,058 10,581 12,129 8 years _ _ 8,695 7,632 8,610 9,989 9 years _ _ _ 8,157 7,246 8,406 10 years _ _ _ _ 7,741 6,863 11 years _ _ _ _ _ 7,412 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ Born before March 1993 147,556 141,155 135,118 129,701 124,965 121,202 Total 251,659 256,354 260,380 261,929 264,998 272,718 Age Class March 2006 March 2007 March 2008 March 2009 March 2010 March 2011 Less than one year 23,341 21,187 21,121 20,326 19,484 20,728 1 year 18,871 18,945 16,815 16,803 16,392 15,994 2 years 15,342 16,752 16,645 14,743 14,613 14,651 3 years 14,178 13,904 15,010 14,761 13,143 13,252 4 years 14,708 13,112 12,558 13,569 13,437 12,073 5 years 11,902 13,624 12,087 11,564 12,404 12,417 6 years 13,179 11,191 12,750 11,153 10,685 11,639 7 years 10,742 12,493 10,393 11,893 10,454 10,032 8 years 11,780 10,178 11,718 9,653 11,196 9,874 9 years 9,681 11,239 9,612 11,015 9,132 10,758 10 years 8,035 9,257 10,702 9,055 10,523 8,748 11 years 6,604 7,724 8,811 10,116 8,633 10,060 12 years 7,140 6,344 7,401 8,333 9,681 8,305 13 years _ 6,899 6,049 7,125 7,979 9,380 14 years _ _ 6,627 5,750 6,875 7,684 15 years _ _ _ 6,332 5,454 6,580 16 years _ _ _ _ 6,093 5,292 17 years _ _ _ _ _ 5,927 18 years _ _ _ _ _ _ Born before March 1993 118,370 114,918 111,674 107,877 104,739 102,034 Total 283,873 287,767 289,973 290,068 290,917 295,428 Age Class March 2012 Less than one year 23,720 1 year 16,223 2 years 13,665 3 years 12,845 4 years 12,037 5 years 10,936 6 years 11,333 7 years 10,853 8 years 9,420 9 years 9,288 10 years 10,216 11 years 8,315 12 years 9,643 13 years 7,963 14 years 8,987 15 years 7,383 16 years 6,372 17 years 5,120 18 years 5,714 Born before March 1993 99,098 Total 299,131 NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.