Frequencies for a_c1_50 variable in snf_rollup2540_96_1997 dataset :

    a_c1_50 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1035 |          1        0.01        0.01
       9353 |          2        0.02        0.03
      81657 |          1        0.01        0.03
     120126 |          1        0.01        0.04
     175427 |          1        0.01        0.05
     262054 |          1        0.01        0.06
     285771 |          1        0.01        0.07
     361233 |          1        0.01        0.08
     601522 |          1        0.01        0.08
     698119 |          1        0.01        0.09
          . |     11,907       99.91      100.00
------------+-----------------------------------
      Total |     11,918      100.00

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