Frequencies for first 10,000 rows of pct012c167 variable in sf12010860us22 dataset :

   60 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,707       87.07       87.07
          1 |        899        8.99       96.06
          2 |        261        2.61       98.67
          3 |         82        0.82       99.49
          4 |         16        0.16       99.65
          5 |          8        0.08       99.73
          6 |          6        0.06       99.79
          7 |          3        0.03       99.82
          8 |          1        0.01       99.83
          9 |          3        0.03       99.86
         10 |          2        0.02       99.88
         12 |          1        0.01       99.89
         13 |          2        0.02       99.91
         17 |          1        0.01       99.92
         19 |          1        0.01       99.93
         26 |          2        0.02       99.95
         30 |          1        0.01       99.96
         36 |          1        0.01       99.97
         44 |          1        0.01       99.98
         67 |          1        0.01       99.99
         69 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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