Frequencies for a_c2_40 variable in snf_rollup2540_96_1995 dataset :

    a_c2_40 |      Freq.     Percent        Cum.
------------+-----------------------------------
         39 |          1        0.08        0.08
         60 |          1        0.08        0.16
        490 |          1        0.08        0.24
       1422 |          1        0.08        0.32
       1700 |          1        0.08        0.40
       2057 |          1        0.08        0.49
       3918 |          1        0.08        0.57
       3940 |          1        0.08        0.65
       4385 |          1        0.08        0.73
       6084 |          1        0.08        0.81
       7980 |          1        0.08        0.89
       9220 |          1        0.08        0.97
      15458 |          1        0.08        1.05
      16066 |          1        0.08        1.13
      17559 |          1        0.08        1.21
          . |      1,220       98.79      100.00
------------+-----------------------------------
      Total |      1,235      100.00

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