Frequencies for first 10,000 rows of pct012c063 variable in sf12010860us22 dataset :

   60 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,712       87.12       87.12
          1 |        943        9.43       96.55
          2 |        214        2.14       98.69
          3 |         62        0.62       99.31
          4 |         33        0.33       99.64
          5 |         12        0.12       99.76
          6 |          5        0.05       99.81
          7 |          5        0.05       99.86
          8 |          2        0.02       99.88
         10 |          1        0.01       99.89
         11 |          1        0.01       99.90
         15 |          1        0.01       99.91
         18 |          1        0.01       99.92
         20 |          1        0.01       99.93
         23 |          1        0.01       99.94
         24 |          1        0.01       99.95
         28 |          1        0.01       99.96
         34 |          1        0.01       99.97
         45 |          1        0.01       99.98
         56 |          1        0.01       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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