Frequencies for sec508lma variable in impact2007 dataset :

Section 508 |
      Labor |
Market Area |
         if |
 applicable |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,569       97.06       97.06
      10900 |          9        0.24       97.31
      11460 |         12        0.33       97.63
      13740 |          3        0.08       97.72
      14484 |          2        0.05       97.77
      16300 |          3        0.08       97.85
      16740 |          1        0.03       97.88
      17980 |          1        0.03       97.91
      19260 |          1        0.03       97.93
      22020 |          8        0.22       98.15
      22420 |         12        0.33       98.48
      25060 |          2        0.05       98.53
      26420 |          2        0.05       98.59
      28020 |         10        0.27       98.86
      29540 |          3        0.08       98.94
      31340 |          1        0.03       98.97
      32580 |          1        0.03       98.99
      35004 |          9        0.24       99.24
      35644 |         12        0.33       99.56
      39660 |          1        0.03       99.59
      42220 |          2        0.05       99.65
      43620 |          6        0.16       99.81
    ownwage |          7        0.19      100.00
------------+-----------------------------------
      Total |      3,677      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016