Frequencies for first 10,000 rows of pct012g170 variable in sf12000860us22 dataset :

   63 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,160       81.60       81.60
          1 |      1,095       10.95       92.55
          2 |        315        3.15       95.70
          3 |        133        1.33       97.03
          4 |         79        0.79       97.82
          5 |         47        0.47       98.29
          6 |         34        0.34       98.63
          7 |         16        0.16       98.79
          8 |         25        0.25       99.04
          9 |         21        0.21       99.25
         10 |          7        0.07       99.32
         11 |         12        0.12       99.44
         12 |          9        0.09       99.53
         13 |          6        0.06       99.59
         14 |         11        0.11       99.70
         15 |          5        0.05       99.75
         16 |          7        0.07       99.82
         17 |          2        0.02       99.84
         18 |          6        0.06       99.90
         19 |          1        0.01       99.91
         20 |          1        0.01       99.92
         21 |          1        0.01       99.93
         22 |          3        0.03       99.96
         27 |          1        0.01       99.97
         28 |          1        0.01       99.98
         29 |          1        0.01       99.99
         32 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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