Frequencies for first 10,000 rows of pct012o167 variable in sf12000860us30 dataset :

   60 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,228       82.28       82.28
          1 |      1,115       11.15       93.43
          2 |        309        3.09       96.52
          3 |        118        1.18       97.70
          4 |         73        0.73       98.43
          5 |         46        0.46       98.89
          6 |         29        0.29       99.18
          7 |         19        0.19       99.37
          8 |         13        0.13       99.50
          9 |         16        0.16       99.66
         10 |         13        0.13       99.79
         11 |          5        0.05       99.84
         12 |          4        0.04       99.88
         13 |          4        0.04       99.92
         14 |          2        0.02       99.94
         15 |          1        0.01       99.95
         17 |          1        0.01       99.96
         19 |          1        0.01       99.97
         21 |          1        0.01       99.98
         23 |          1        0.01       99.99
         33 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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