Frequencies for c_1_c7_03031 variable in hcris2552_96_2007 dataset :

c_1_c7_0303 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2738 |          1        0.02        0.02
       7459 |          1        0.02        0.03
       8921 |          1        0.02        0.05
     605195 |          1        0.02        0.06
          . |      6,176       99.94      100.00
------------+-----------------------------------
      Total |      6,180      100.00

by Jean Roth , jroth@nber.org , 11 Sep 2018