Frequencies for c_1_c7_03180 variable in hcris2552_96_2009 dataset :

c_1_c7_0318 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
      39837 |          1        0.02        0.02
          . |      6,201       99.98      100.00
------------+-----------------------------------
      Total |      6,202      100.00

by Jean Roth , jroth@nber.org , 31 Aug 2018