Table 5. Number of private sector establishments by age Construction Age Class March 1991 March 1992 March 1993 March 1994 March 1995 March 1996 Less than one year _ _ _ 64,671 71,046 67,910 1 year _ _ _ _ 48,431 52,835 2 years _ _ _ _ _ 40,953 3 years _ _ _ _ _ _ 4 years _ _ _ _ _ _ 5 years _ _ _ _ _ _ 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 _ _ _ _ _ _ 19 years _ _ _ _ _ _ 20 years _ _ _ _ _ _ 21 years _ _ _ _ _ _ 22 years _ _ _ _ _ _ 23 years _ _ _ _ _ _ 24 years _ _ _ _ _ _ 25 years _ _ _ _ _ _ 26 years _ _ _ _ _ _ 27 years _ _ _ _ _ _ 28 years _ _ _ _ _ _ 29 years _ _ _ _ _ _ 30 years _ _ _ _ _ _ Born before March 1993 484,030 477,048 487,295 440,839 407,778 376,355 Total 484,030 477,048 487,295 505,510 527,255 538,053 Age Class March 1997 March 1998 March 1999 March 2000 March 2001 March 2002 Less than one year 70,460 66,025 67,387 68,218 69,296 66,825 1 year 50,752 53,208 53,477 53,664 53,467 51,189 2 years 45,532 43,087 46,573 46,278 44,805 44,971 3 years 36,733 39,836 39,008 41,684 39,655 39,123 4 years _ 32,750 36,600 35,239 36,117 35,224 5 years _ _ 30,633 33,563 31,575 32,523 6 years _ _ _ 28,236 30,325 29,131 7 years _ _ _ _ 25,882 27,988 8 years _ _ _ _ _ 24,044 9 years _ _ _ _ _ _ 10 years _ _ _ _ _ _ 11 years _ _ _ _ _ _ 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ 19 years _ _ _ _ _ _ 20 years _ _ _ _ _ _ 21 years _ _ _ _ _ _ 22 years _ _ _ _ _ _ 23 years _ _ _ _ _ _ 24 years _ _ _ _ _ _ 25 years _ _ _ _ _ _ 26 years _ _ _ _ _ _ 27 years _ _ _ _ _ _ 28 years _ _ _ _ _ _ 29 years _ _ _ _ _ _ 30 years _ _ _ _ _ _ Born before March 1993 356,150 333,965 320,003 303,670 285,869 272,345 Total 559,627 568,871 593,681 610,552 616,991 623,363 Age Class March 2003 March 2004 March 2005 March 2006 March 2007 March 2008 Less than one year 68,212 73,235 80,087 86,247 78,502 66,969 1 year 49,875 52,595 56,425 62,744 64,054 55,899 2 years 43,378 43,238 45,146 49,513 52,813 51,551 3 years 39,705 38,783 38,351 40,804 43,216 44,207 4 years 34,841 36,184 36,301 35,045 36,160 37,228 5 years 31,903 31,966 32,748 33,563 31,732 31,837 6 years 29,815 29,395 29,278 30,475 30,644 28,134 7 years 26,722 27,602 27,100 27,328 27,925 27,561 8 years 25,943 24,971 25,506 25,492 25,229 25,198 9 years 22,379 24,396 23,093 24,114 23,485 22,871 10 years _ 21,106 22,777 21,853 22,393 21,419 11 years _ _ 19,912 21,538 20,356 20,557 12 years _ _ _ 19,304 20,154 18,641 13 years _ _ _ _ 18,031 18,563 14 years _ _ _ _ _ 16,672 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ 19 years _ _ _ _ _ _ 20 years _ _ _ _ _ _ 21 years _ _ _ _ _ _ 22 years _ _ _ _ _ _ 23 years _ _ _ _ _ _ 24 years _ _ _ _ _ _ 25 years _ _ _ _ _ _ 26 years _ _ _ _ _ _ 27 years _ _ _ _ _ _ 28 years _ _ _ _ _ _ 29 years _ _ _ _ _ _ 30 years _ _ _ _ _ _ Born before March 1993 258,940 248,233 236,497 228,049 216,784 204,841 Total 631,713 651,704 673,221 706,069 711,478 692,148 Age Class March 2009 March 2010 March 2011 March 2012 March 2013 March 2014 Less than one year 48,225 40,927 43,277 46,719 47,513 46,782 1 year 43,200 32,638 29,468 32,072 34,831 36,101 2 years 41,003 33,681 27,150 25,462 27,724 30,691 3 years 39,339 32,701 29,227 24,329 22,732 25,099 4 years 34,971 32,035 29,070 26,300 22,096 20,916 5 years 29,910 29,176 28,606 26,494 24,165 20,478 6 years 26,255 25,423 26,235 26,367 24,596 22,638 7 years 23,482 22,508 23,144 24,383 24,534 23,330 8 years 23,175 20,357 20,513 21,703 22,854 23,350 9 years 21,403 20,152 18,677 19,219 20,297 21,770 10 years 19,504 18,632 18,434 17,348 18,135 19,384 11 years 18,528 17,167 17,411 17,562 16,444 17,398 12 years 17,739 16,497 15,962 16,436 16,688 15,741 13 years 16,710 15,784 15,386 15,370 15,579 16,034 14 years 16,425 14,917 14,632 14,601 14,603 14,878 15 years 14,708 14,863 13,902 13,968 13,817 13,955 16 years _ 13,245 13,793 13,237 13,252 13,262 17 years _ _ 12,571 13,142 12,554 12,839 18 years _ _ _ 11,930 12,564 12,151 19 years _ _ _ _ 11,408 12,055 20 years _ _ _ _ _ 10,896 21 years _ _ _ _ _ _ 22 years _ _ _ _ _ _ 23 years _ _ _ _ _ _ 24 years _ _ _ _ _ _ 25 years _ _ _ _ _ _ 26 years _ _ _ _ _ _ 27 years _ _ _ _ _ _ 28 years _ _ _ _ _ _ 29 years _ _ _ _ _ _ 30 years _ _ _ _ _ _ Born before March 1993 188,464 174,854 166,148 159,399 152,643 147,386 Total 623,041 575,557 563,606 566,041 569,029 577,134 Age Class March 2015 March 2016 March 2017 March 2018 March 2019 March 2020 Less than one year 49,837 52,541 53,149 58,991 60,967 57,753 1 year 38,745 41,500 43,551 45,630 47,492 47,979 2 years 32,373 34,890 37,312 39,745 40,348 41,113 3 years 28,191 29,841 31,914 34,145 36,160 35,844 4 years 23,281 26,207 27,661 29,557 31,477 32,539 5 years 19,532 21,802 24,352 25,606 27,266 28,647 6 years 19,249 18,311 20,457 22,823 24,057 25,091 7 years 21,290 18,292 17,299 19,248 21,351 22,177 8 years 22,193 20,398 17,238 16,268 18,174 19,901 9 years 22,267 21,283 19,383 16,236 15,432 16,931 10 years 20,746 21,330 20,230 18,363 15,308 14,347 11 years 18,556 19,938 20,390 19,202 17,509 14,443 12 years 16,599 17,971 19,022 19,499 18,281 16,343 13 years 15,125 15,971 17,033 18,053 18,552 17,230 14 years 15,408 14,656 15,206 16,283 17,236 17,490 15 years 14,377 14,844 14,026 14,510 15,525 16,259 16 years 13,511 13,925 14,247 13,463 13,951 14,655 17 years 12,748 13,023 13,256 13,636 12,810 13,203 18 years 12,359 12,463 12,452 12,725 13,014 12,097 19 years 11,701 11,950 11,984 11,903 12,171 12,297 20 years 11,595 11,362 11,468 11,446 11,388 11,580 21 years 10,565 11,225 10,849 10,922 10,898 10,895 22 years _ 10,239 10,773 10,414 10,454 10,329 23 years _ _ 9,806 10,243 10,009 9,903 24 years _ _ _ 9,383 9,821 9,490 25 years _ _ _ _ 9,042 9,366 26 years _ _ _ _ _ 8,559 27 years _ _ _ _ _ _ 28 years _ _ _ _ _ _ 29 years _ _ _ _ _ _ 30 years _ _ _ _ _ _ Born before March 1993 142,236 137,905 132,634 127,679 122,598 117,185 Total 592,484 611,867 625,692 645,973 661,291 663,646 Age Class March 2021 March 2022 March 2023 March 2024 Less than one year 59,125 66,978 66,488 61,628 1 year 48,025 48,033 54,348 53,783 2 years 43,864 43,620 42,402 48,025 3 years 38,627 40,633 39,395 38,148 4 years 33,832 36,056 36,980 35,920 5 years 30,804 31,768 33,130 34,076 6 years 27,185 29,080 29,488 30,661 7 years 23,966 25,914 27,208 27,542 8 years 21,172 22,768 24,254 25,432 9 years 19,077 20,154 21,445 22,782 10 years 16,259 18,115 19,046 20,063 11 years 13,802 15,498 17,183 17,940 12 years 13,910 13,155 14,695 16,346 13 years 15,825 13,293 12,536 13,929 14 years 16,654 14,984 12,609 11,961 15 years 16,980 15,945 14,257 12,064 16 years 15,706 16,172 15,202 13,642 17 years 14,222 15,116 15,404 14,496 18 years 12,723 13,589 14,314 14,730 19 years 11,683 12,148 12,989 13,656 20 years 11,886 11,238 11,640 12,328 21 years 11,147 11,391 10,627 11,093 22 years 10,538 10,700 10,849 10,109 23 years 9,962 10,054 10,211 10,355 24 years 9,574 9,537 9,548 9,703 25 years 9,077 9,099 9,106 9,081 26 years 8,930 8,741 8,628 8,646 27 years 8,152 8,577 8,269 8,226 28 years _ 7,832 8,098 7,928 29 years _ _ 7,431 7,726 30 years _ _ _ 7,105 Born before March 1993 112,505 108,306 103,241 98,691 Total 685,212 708,494 721,021 727,815 NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.