Frequencies for c_1_c6_03100 variable in hcris2552_96_2011 dataset :

c_1_c6_0310 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
    1376090 |          1        2.94        2.94
    2770125 |          1        2.94        5.88
    4065541 |          1        2.94        8.82
   1.67e+07 |          1        2.94       11.76
          . |         30       88.24      100.00
------------+-----------------------------------
      Total |         34      100.00

by Jean Roth , jroth@nber.org , 2 Sep 2018