Frequencies for c_1_c7_05020 variable in hcris2552_96_2006 dataset :

c_1_c7_0502 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
     131873 |          1        0.02        0.02
     773689 |          1        0.02        0.03
          . |      6,231       99.97      100.00
------------+-----------------------------------
      Total |      6,233      100.00

by Jean Roth , jroth@nber.org , 10 Sep 2018