Frequencies for a_c1_23 variable in snf_rollup2540_96_1996 dataset :

    a_c1_23 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1087 |          1        0.01        0.01
       1107 |          1        0.01        0.02
       1221 |          1        0.01        0.03
       1760 |          1        0.01        0.04
       1866 |          1        0.01        0.05
       2419 |          1        0.01        0.06
       6630 |          1        0.01        0.07
       7738 |          1        0.01        0.08
       7788 |          1        0.01        0.09
      18792 |          1        0.01        0.10
      21207 |          1        0.01        0.11
      51828 |          1        0.01        0.12
          . |      9,596       99.88      100.00
------------+-----------------------------------
      Total |      9,608      100.00

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