Frequencies for a_c1_51 variable in snf_rollup2540_96_1997 dataset :

    a_c1_51 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2265 |          1        0.01        0.01
       3082 |          1        0.01        0.02
       8571 |          1        0.01        0.03
      10135 |          1        0.01        0.03
      12756 |          1        0.01        0.04
      40751 |          1        0.01        0.05
      52181 |          1        0.01        0.06
      74937 |          1        0.01        0.07
     103555 |          1        0.01        0.08
     131039 |          1        0.01        0.08
     137123 |          1        0.01        0.09
     138532 |          1        0.01        0.10
     160644 |          1        0.01        0.11
     300549 |          1        0.01        0.12
     341510 |          1        0.01        0.13
     361838 |          1        0.01        0.13
     383002 |          1        0.01        0.14
     415228 |          1        0.01        0.15
     967708 |          1        0.01        0.16
    1024367 |          1        0.01        0.17
    1302177 |          1        0.01        0.18
          . |     11,897       99.82      100.00
------------+-----------------------------------
      Total |     11,918      100.00

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