Frequencies for first 10,000 rows of pct012k032 variable in sf12010860us30 dataset :

   29 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,942       89.42       89.42
          1 |        760        7.60       97.02
          2 |        175        1.75       98.77
          3 |         60        0.60       99.37
          4 |         26        0.26       99.63
          5 |         11        0.11       99.74
          6 |          9        0.09       99.83
          8 |          2        0.02       99.85
         10 |          1        0.01       99.86
         12 |          1        0.01       99.87
         13 |          1        0.01       99.88
         14 |          1        0.01       99.89
         17 |          1        0.01       99.90
         20 |          1        0.01       99.91
         21 |          1        0.01       99.92
         30 |          3        0.03       99.95
         39 |          1        0.01       99.96
         41 |          1        0.01       99.97
         55 |          1        0.01       99.98
         64 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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