Frequencies for first 10,000 rows of pct012n044 variable in sf12010860us33 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,175       91.75       91.75
          1 |        548        5.48       97.23
          2 |        122        1.22       98.45
          3 |         56        0.56       99.01
          4 |         29        0.29       99.30
          5 |         18        0.18       99.48
          6 |          7        0.07       99.55
          7 |         13        0.13       99.68
          8 |          4        0.04       99.72
          9 |          5        0.05       99.77
         10 |          1        0.01       99.78
         11 |          1        0.01       99.79
         12 |          2        0.02       99.81
         13 |          4        0.04       99.85
         14 |          2        0.02       99.87
         15 |          4        0.04       99.91
         16 |          3        0.03       99.94
         25 |          1        0.01       99.95
         28 |          1        0.01       99.96
         35 |          1        0.01       99.97
         36 |          1        0.01       99.98
         44 |          1        0.01       99.99
         46 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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