Frequencies for s3_1_c17_3 variable in snf_rollup2540_96_1997 dataset :

 s3_1_c17_3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          5        0.04        0.04
          2 |          3        0.03        0.07
          3 |          2        0.02        0.08
          4 |          3        0.03        0.11
          5 |          3        0.03        0.13
          6 |          2        0.02        0.15
          7 |          1        0.01        0.16
          8 |          2        0.02        0.18
          9 |          2        0.02        0.19
         11 |          2        0.02        0.21
         14 |          1        0.01        0.22
         15 |          1        0.01        0.23
         16 |          1        0.01        0.23
         17 |          2        0.02        0.25
         18 |          1        0.01        0.26
         19 |          2        0.02        0.28
         22 |          1        0.01        0.29
         30 |          1        0.01        0.29
         31 |          1        0.01        0.30
         40 |          1        0.01        0.31
         54 |          1        0.01        0.32
         60 |          1        0.01        0.33
         63 |          1        0.01        0.34
         67 |          1        0.01        0.34
         70 |          1        0.01        0.35
         89 |          1        0.01        0.36
         94 |          1        0.01        0.37
          . |     11,874       99.63      100.00
------------+-----------------------------------
      Total |     11,918      100.00

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