Frequencies for first 10,000 rows of pct012o146 variable in sf12010860us34 dataset :

   39 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,804       68.04       68.04
          1 |      1,429       14.29       82.33
          2 |        590        5.90       88.23
          3 |        371        3.71       91.94
          4 |        229        2.29       94.23
          5 |        184        1.84       96.07
          6 |        108        1.08       97.15
          7 |         75        0.75       97.90
          8 |         64        0.64       98.54
          9 |         49        0.49       99.03
         10 |         25        0.25       99.28
         11 |         20        0.20       99.48
         12 |         12        0.12       99.60
         13 |          7        0.07       99.67
         14 |          8        0.08       99.75
         15 |          5        0.05       99.80
         16 |          6        0.06       99.86
         17 |          1        0.01       99.87
         18 |          5        0.05       99.92
         20 |          2        0.02       99.94
         21 |          2        0.02       99.96
         22 |          1        0.01       99.97
         29 |          1        0.01       99.98
         34 |          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