Frequencies for first 10,000 rows of pct012k131 variable in sf12000860us26 dataset :

   24 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,973       89.73       89.73
          1 |        744        7.44       97.17
          2 |        174        1.74       98.91
          3 |         47        0.47       99.38
          4 |         20        0.20       99.58
          5 |         14        0.14       99.72
          6 |          8        0.08       99.80
          7 |          4        0.04       99.84
          8 |          2        0.02       99.86
         11 |          3        0.03       99.89
         12 |          1        0.01       99.90
         16 |          1        0.01       99.91
         25 |          2        0.02       99.93
         32 |          1        0.01       99.94
         33 |          2        0.02       99.96
         51 |          1        0.01       99.97
         61 |          1        0.01       99.98
         64 |          1        0.01       99.99
         69 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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