Frequencies for first 10,000 rows of pct012n150 variable in sf12010860us33 dataset :

   43 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,105       91.05       91.05
          1 |        613        6.13       97.18
          2 |        130        1.30       98.48
          3 |         50        0.50       98.98
          4 |         36        0.36       99.34
          5 |         18        0.18       99.52
          6 |         11        0.11       99.63
          7 |          5        0.05       99.68
          8 |          4        0.04       99.72
          9 |          3        0.03       99.75
         10 |          4        0.04       99.79
         11 |          2        0.02       99.81
         12 |          1        0.01       99.82
         13 |          2        0.02       99.84
         14 |          2        0.02       99.86
         16 |          3        0.03       99.89
         17 |          1        0.01       99.90
         18 |          1        0.01       99.91
         20 |          2        0.02       99.93
         22 |          1        0.01       99.94
         23 |          1        0.01       99.95
         28 |          1        0.01       99.96
         33 |          1        0.01       99.97
         42 |          1        0.01       99.98
         48 |          1        0.01       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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