Frequencies for first 10,000 rows of pct012c067 variable in sf12010860us22 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,045       90.45       90.45
          1 |        705        7.05       97.50
          2 |        165        1.65       99.15
          3 |         47        0.47       99.62
          4 |         14        0.14       99.76
          5 |          5        0.05       99.81
          6 |          5        0.05       99.86
          7 |          2        0.02       99.88
          8 |          1        0.01       99.89
         11 |          2        0.02       99.91
         13 |          1        0.01       99.92
         16 |          1        0.01       99.93
         20 |          2        0.02       99.95
         27 |          1        0.01       99.96
         29 |          1        0.01       99.97
         34 |          1        0.01       99.98
         44 |          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