Frequencies for c_1_c7_03970 variable in hcris2552_96_2001 dataset :

c_1_c7_0397 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
      63488 |          1        0.02        0.02
     170051 |          1        0.02        0.03
     408936 |          1        0.02        0.05
     650564 |          1        0.02        0.06
    3769137 |          1        0.02        0.08
          . |      6,167       99.92      100.00
------------+-----------------------------------
      Total |      6,172      100.00

by Jean Roth , jroth@nber.org , 7 Sep 2018