Table 5. Number of private sector establishments by age Total Private South Dakota Age Class March 1994 March 1995 March 1996 March 1997 March 1998 March 1999 Less than one year 1,608 1,615 1,574 1,465 1,737 1,766 1 year _ 1,320 1,262 1,231 1,180 1,384 2 years _ _ 1,167 1,106 1,096 1,059 3 years _ _ _ 1,040 1,001 1,000 4 years _ _ _ _ 963 908 5 years _ _ _ _ _ 908 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 18,271 17,373 16,509 15,753 14,976 14,272 Total 19,879 20,308 20,512 20,595 20,953 21,297 Age Class March 2000 March 2001 March 2002 March 2003 March 2004 March 2005 Less than one year 1,680 1,648 1,662 1,562 1,646 1,775 1 year 1,470 1,326 1,335 1,350 1,297 1,373 2 years 1,188 1,243 1,183 1,181 1,194 1,157 3 years 951 1,067 1,108 1,090 1,058 1,103 4 years 920 866 988 1,025 1,022 982 5 years 850 840 826 881 958 974 6 years 815 790 797 770 856 904 7 years _ 756 762 745 739 814 8 years _ _ 725 715 712 723 9 years _ _ _ 692 683 674 10 years _ _ _ _ 658 637 11 years _ _ _ _ _ 628 12 years _ _ _ _ _ _ 13 years _ _ _ _ _ _ 14 years _ _ _ _ _ _ 15 years _ _ _ _ _ _ 16 years _ _ _ _ _ _ 17 years _ _ _ _ _ _ 18 years _ _ _ _ _ _ Born before March 1993 13,664 12,945 12,424 12,025 11,712 11,400 Total 21,538 21,481 21,810 22,036 22,535 23,144 Age Class March 2006 March 2007 March 2008 March 2009 March 2010 March 2011 Less than one year 1,707 1,670 1,565 1,620 1,529 1,485 1 year 1,454 1,410 1,382 1,274 1,247 1,238 2 years 1,229 1,294 1,232 1,241 1,062 1,098 3 years 1,069 1,110 1,165 1,139 1,078 976 4 years 1,024 996 1,026 1,076 991 987 5 years 903 954 923 958 956 948 6 years 927 866 882 876 872 897 7 years 866 876 810 865 798 833 8 years 746 830 833 765 773 767 9 years 693 713 797 813 702 751 10 years 639 658 683 774 754 663 11 years 613 614 625 658 695 743 12 years 603 593 589 611 607 683 13 years _ 587 578 573 572 587 14 years _ _ 566 549 549 552 15 years _ _ _ 552 522 525 16 years _ _ _ _ 520 503 17 years _ _ _ _ _ 499 18 years _ _ _ _ _ _ Born before March 1993 11,039 10,754 10,471 10,268 9,917 9,735 Total 23,512 23,925 24,127 24,612 24,144 24,470 Age Class March 2012 Less than one year 1,633 1 year 1,151 2 years 1,108 3 years 989 4 years 891 5 years 919 6 years 901 7 years 858 8 years 775 9 years 724 10 years 730 11 years 635 12 years 721 13 years 671 14 years 560 15 years 537 16 years 499 17 years 493 18 years 497 Born before March 1993 9,531 Total 24,823 NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.