Frequencies for s3_1_c4_02120 variable in hcris2552_96_1998 dataset :

s3_1_c4_021 |
         20 |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |          1        0.02        0.02
          . |      6,326       99.98      100.00
------------+-----------------------------------
      Total |      6,327      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018