Frequencies for first 10,000 rows of pct012g173 variable in sf12000860us22 dataset :

   66 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,316       83.16       83.16
          1 |      1,010       10.10       93.26
          2 |        299        2.99       96.25
          3 |        119        1.19       97.44
          4 |         73        0.73       98.17
          5 |         39        0.39       98.56
          6 |         33        0.33       98.89
          7 |         31        0.31       99.20
          8 |         18        0.18       99.38
          9 |         11        0.11       99.49
         10 |          8        0.08       99.57
         11 |          7        0.07       99.64
         12 |          7        0.07       99.71
         13 |          5        0.05       99.76
         14 |          3        0.03       99.79
         15 |          4        0.04       99.83
         16 |          7        0.07       99.90
         17 |          3        0.03       99.93
         19 |          6        0.06       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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