Frequencies for first 10,000 rows of pct012c169 variable in sf12000860us18 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,283       92.83       92.83
          1 |        551        5.51       98.34
          2 |        112        1.12       99.46
          3 |         27        0.27       99.73
          4 |          9        0.09       99.82
          5 |          4        0.04       99.86
          6 |          1        0.01       99.87
          7 |          1        0.01       99.88
          8 |          2        0.02       99.90
          9 |          1        0.01       99.91
         11 |          2        0.02       99.93
         16 |          1        0.01       99.94
         18 |          1        0.01       99.95
         19 |          1        0.01       99.96
         22 |          1        0.01       99.97
         23 |          2        0.02       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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