Frequencies for c_1_c7_03390 variable in hcris2552_96_2010 dataset :

c_1_c7_0339 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
     135615 |          1        0.03        0.03
     900700 |          1        0.03        0.05
    1398895 |          1        0.03        0.08
   1.45e+07 |          1        0.03        0.10
          . |      3,847       99.90      100.00
------------+-----------------------------------
      Total |      3,851      100.00

by Jean Roth , jroth@nber.org , 1 Sep 2018