Frequencies for first 10,000 rows of pct012c065 variable in sf12000860us18 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,320       93.20       93.20
          1 |        554        5.54       98.74
          2 |         83        0.83       99.57
          3 |         20        0.20       99.77
          4 |          9        0.09       99.86
          5 |          2        0.02       99.88
          6 |          1        0.01       99.89
          7 |          1        0.01       99.90
          8 |          1        0.01       99.91
         10 |          2        0.02       99.93
         13 |          1        0.01       99.94
         15 |          1        0.01       99.95
         19 |          1        0.01       99.96
         23 |          2        0.02       99.98
         25 |          1        0.01       99.99
         28 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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