Frequencies for first 10,000 rows of pct012o050 variable in sf12010860us34 dataset :

   47 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,980       69.80       69.80
          1 |      1,526       15.26       85.06
          2 |        668        6.68       91.74
          3 |        330        3.30       95.04
          4 |        172        1.72       96.76
          5 |        116        1.16       97.92
          6 |         75        0.75       98.67
          7 |         43        0.43       99.10
          8 |         30        0.30       99.40
          9 |         18        0.18       99.58
         10 |         12        0.12       99.70
         11 |          9        0.09       99.79
         12 |          5        0.05       99.84
         13 |          3        0.03       99.87
         14 |          2        0.02       99.89
         15 |          2        0.02       99.91
         16 |          1        0.01       99.92
         17 |          1        0.01       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         20 |          2        0.02       99.97
         23 |          1        0.01       99.98
         32 |          1        0.01       99.99
         33 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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