Frequencies for a_c1_31 variable in snf_rollup2540_96_1996 dataset :

    a_c1_31 |      Freq.     Percent        Cum.
------------+-----------------------------------
        510 |          1        0.01        0.01
       1010 |          1        0.01        0.02
       3101 |          1        0.01        0.03
       3197 |          1        0.01        0.04
       6308 |          1        0.01        0.05
       7905 |          1        0.01        0.06
      10600 |          1        0.01        0.07
      11071 |          1        0.01        0.08
      15029 |          1        0.01        0.09
      19990 |          1        0.01        0.10
      23781 |          1        0.01        0.11
      38146 |          1        0.01        0.12
     143657 |          1        0.01        0.14
          . |      9,595       99.86      100.00
------------+-----------------------------------
      Total |      9,608      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018