Frequencies for first 10,000 rows of pct012k169 variable in sf12000860us26 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,388       93.88       93.88
          1 |        489        4.89       98.77
          2 |         80        0.80       99.57
          3 |         21        0.21       99.78
          4 |          6        0.06       99.84
          5 |          2        0.02       99.86
          6 |          1        0.01       99.87
          7 |          1        0.01       99.88
          8 |          3        0.03       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