Frequencies for first 10,000 rows of pct012n035 variable in sf12000860us29 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,250       92.50       92.50
          1 |        473        4.73       97.23
          2 |        140        1.40       98.63
          3 |         52        0.52       99.15
          4 |         21        0.21       99.36
          5 |         11        0.11       99.47
          6 |         10        0.10       99.57
          7 |          7        0.07       99.64
          8 |          5        0.05       99.69
          9 |          7        0.07       99.76
         10 |          2        0.02       99.78
         11 |          3        0.03       99.81
         12 |          2        0.02       99.83
         13 |          3        0.03       99.86
         14 |          3        0.03       99.89
         16 |          1        0.01       99.90
         17 |          1        0.01       99.91
         18 |          1        0.01       99.92
         20 |          1        0.01       99.93
         21 |          1        0.01       99.94
         22 |          2        0.02       99.96
         24 |          1        0.01       99.97
         26 |          1        0.01       99.98
         31 |          1        0.01       99.99
         50 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017