Frequencies for c_1_c7_06601 variable in hcris2552_96_1997 dataset :

c_1_c7_0660 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6972 |          1        0.02        0.02
     513781 |          1        0.02        0.03
     752399 |          1        0.02        0.05
    1583679 |          1        0.02        0.06
          . |      6,376       99.94      100.00
------------+-----------------------------------
      Total |      6,380      100.00

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