Frequencies for c_1_c6_03970 variable in hcris2552_96_2001 dataset :

c_1_c6_0397 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
        100 |          1        0.02        0.02
       1191 |          1        0.02        0.03
      21244 |          1        0.02        0.05
     873971 |          1        0.02        0.06
          . |      6,168       99.94      100.00
------------+-----------------------------------
      Total |      6,172      100.00

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