Frequencies for c_1_c7_05400 variable in hcris2552_96_2011 dataset :

c_1_c7_0540 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
      51599 |          1        2.94        2.94
     147165 |          1        2.94        5.88
     401408 |          1        2.94        8.82
     562890 |          1        2.94       11.76
          . |         30       88.24      100.00
------------+-----------------------------------
      Total |         34      100.00

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