Frequencies for a_c1_55 variable in snf_rollup2540_96_1995 dataset :

    a_c1_55 |      Freq.     Percent        Cum.
------------+-----------------------------------
      49980 |          1        0.08        0.08
      64034 |          1        0.08        0.16
     265324 |          1        0.08        0.24
     614101 |          1        0.08        0.32
    1084413 |          1        0.08        0.40
    1113747 |          1        0.08        0.49
          . |      1,229       99.51      100.00
------------+-----------------------------------
      Total |      1,235      100.00

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