Frequencies for first 10,000 rows of pct012n148 variable in sf12010860us33 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,092       90.92       90.92
          1 |        598        5.98       96.90
          2 |        165        1.65       98.55
          3 |         52        0.52       99.07
          4 |         26        0.26       99.33
          5 |         11        0.11       99.44
          6 |          9        0.09       99.53
          7 |          6        0.06       99.59
          8 |          9        0.09       99.68
          9 |          7        0.07       99.75
         10 |          4        0.04       99.79
         11 |          3        0.03       99.82
         12 |          1        0.01       99.83
         13 |          3        0.03       99.86
         15 |          3        0.03       99.89
         17 |          2        0.02       99.91
         18 |          1        0.01       99.92
         23 |          1        0.01       99.93
         24 |          1        0.01       99.94
         25 |          2        0.02       99.96
         28 |          1        0.01       99.97
         42 |          1        0.01       99.98
         46 |          1        0.01       99.99
         58 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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