Table 5. Number of private sector establishments by age Construction Age Class March 1994 March 1995 March 1996 March 1997 March 1998 March 1999 Less than one year 64,652 71,002 67,874 70,378 65,882 66,660 1 year _ 48,413 52,792 50,720 53,146 53,351 2 years _ _ 40,940 45,494 43,056 46,505 3 years _ _ _ 36,720 39,795 38,973 4 years _ _ _ _ 32,737 36,563 5 years _ _ _ _ _ 30,622 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 440,669 407,617 376,188 355,995 333,802 319,845 Total 505,321 527,032 537,794 559,307 568,418 592,519 Age Class March 2000 March 2001 March 2002 March 2003 March 2004 March 2005 Less than one year 65,171 60,390 62,289 62,294 67,046 72,267 1 year 53,012 50,770 50,514 48,780 51,655 55,316 2 years 46,151 44,182 44,584 43,041 42,854 44,733 3 years 41,614 39,537 38,988 39,504 38,586 38,156 4 years 35,206 36,054 35,180 34,749 36,065 36,162 5 years 33,532 31,543 32,505 31,857 31,910 32,670 6 years 28,224 30,285 29,115 29,787 29,370 29,240 7 years _ 25,870 27,976 26,706 27,589 27,080 8 years _ _ 24,040 25,929 24,958 25,490 9 years _ _ _ 22,364 24,380 23,078 10 years _ _ _ _ 21,098 22,768 11 years _ _ _ _ _ 19,908 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ Born before March 1993 303,513 285,719 272,268 258,831 248,138 236,389 Total 606,423 604,350 617,459 623,842 643,649 663,257 Age Class March 2006 March 2007 March 2008 March 2009 March 2010 March 2011 Less than one year 78,736 71,779 60,848 44,967 37,384 39,958 1 year 61,329 62,948 54,284 42,446 31,873 28,758 2 years 49,004 52,331 51,035 40,701 33,381 26,870 3 years 40,556 42,993 43,955 39,149 32,522 29,087 4 years 34,909 36,031 37,098 34,867 31,913 29,002 5 years 33,468 31,665 31,766 29,857 29,106 28,558 6 years 30,414 30,586 28,101 26,220 25,391 26,201 7 years 27,293 27,904 27,524 23,472 22,493 23,126 8 years 25,473 25,216 25,181 23,155 20,360 20,502 9 years 24,094 23,473 22,859 21,398 20,143 18,681 10 years 21,837 22,382 21,415 19,500 18,630 18,429 11 years 21,524 20,341 20,548 18,528 17,164 17,404 12 years 19,300 20,141 18,631 17,732 16,496 15,961 13 years _ 18,029 18,551 16,703 15,778 15,385 14 years _ _ 16,672 16,418 14,916 14,626 15 years _ _ _ 14,709 14,857 13,901 16 years _ _ _ _ 13,245 13,790 17 years _ _ _ _ _ 12,573 18 years _ _ _ _ _ _ Born before March 1993 227,924 216,676 204,756 188,395 174,798 166,094 Total 695,861 702,495 683,224 618,217 570,450 558,906 Age Class March 2012 Less than one year 41,369 1 year 31,249 2 years 25,107 3 years 24,210 4 years 26,258 5 years 26,489 6 years 26,369 7 years 24,383 8 years 21,686 9 years 19,240 10 years 17,357 11 years 17,548 12 years 16,436 13 years 15,375 14 years 14,596 15 years 13,958 16 years 13,239 17 years 13,144 18 years 11,938 Born before March 1993 159,325 Total 559,276 NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.