Frequencies for first 10,000 rows of pct012o161 variable in sf12010860us34 dataset :

   54 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,127       71.27       71.27
          1 |      1,526       15.26       86.53
          2 |        629        6.29       92.82
          3 |        288        2.88       95.70
          4 |        157        1.57       97.27
          5 |         99        0.99       98.26
          6 |         59        0.59       98.85
          7 |         42        0.42       99.27
          8 |         19        0.19       99.46
          9 |          9        0.09       99.55
         10 |         15        0.15       99.70
         11 |          9        0.09       99.79
         12 |          5        0.05       99.84
         13 |          6        0.06       99.90
         15 |          4        0.04       99.94
         16 |          2        0.02       99.96
         17 |          1        0.01       99.97
         20 |          1        0.01       99.98
         25 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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