Frequencies for g_c1thr4_56 variable in snf_rollup2540_96_1995 dataset :

g_c1thr4_56 |      Freq.     Percent        Cum.
------------+-----------------------------------
     449026 |          1        0.08        0.08
     599227 |          1        0.08        0.16
    1334077 |          1        0.08        0.24
          . |      1,232       99.76      100.00
------------+-----------------------------------
      Total |      1,235      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018