Frequencies for s3_1_c22_7 variable in snf_rollup2540_96_1997 dataset :

 s3_1_c22_7 |      Freq.     Percent        Cum.
------------+-----------------------------------
       3.61 |          1        0.01        0.01
       9.79 |          1        0.01        0.02
      10.73 |          1        0.01        0.03
      12.06 |          1        0.01        0.03
      22.33 |          1        0.01        0.04
          . |     11,913       99.96      100.00
------------+-----------------------------------
      Total |     11,918      100.00

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