Frequencies for d_1_c3_31 variable in snf_rollup2540_96_1996 dataset :

  d_1_c3_31 |      Freq.     Percent        Cum.
------------+-----------------------------------
         71 |          1        0.01        0.01
        800 |          1        0.01        0.02
       1080 |          1        0.01        0.03
      26378 |          1        0.01        0.04
          . |      9,604       99.96      100.00
------------+-----------------------------------
      Total |      9,608      100.00

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