Frequencies for first 10,000 rows of pct012c162 variable in sf12000860us18 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,980       89.80       89.80
          1 |        766        7.66       97.46
          2 |        167        1.67       99.13
          3 |         43        0.43       99.56
          4 |         20        0.20       99.76
          5 |          6        0.06       99.82
          6 |          3        0.03       99.85
          7 |          2        0.02       99.87
          8 |          2        0.02       99.89
          9 |          2        0.02       99.91
         15 |          2        0.02       99.93
         24 |          1        0.01       99.94
         26 |          1        0.01       99.95
         27 |          1        0.01       99.96
         34 |          1        0.01       99.97
         46 |          1        0.01       99.98
         50 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017