Frequencies for c_1_c7_03031 variable in hcris2552_96_2008 dataset :

c_1_c7_0303 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6518 |          1        0.02        0.02
     622287 |          1        0.02        0.03
     924877 |          1        0.02        0.05
    4004012 |          1        0.02        0.06
          . |      6,204       99.94      100.00
------------+-----------------------------------
      Total |      6,208      100.00

by Jean Roth , jroth@nber.org , 12 Sep 2018