Frequencies for first 10,000 rows of pct012c134 variable in sf12010860us22 dataset :

   27 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,513       85.13       85.13
          1 |        873        8.73       93.86
          2 |        306        3.06       96.92
          3 |        137        1.37       98.29
          4 |         61        0.61       98.90
          5 |         34        0.34       99.24
          6 |         20        0.20       99.44
          7 |         14        0.14       99.58
          8 |          6        0.06       99.64
          9 |         10        0.10       99.74
         10 |          4        0.04       99.78
         11 |          3        0.03       99.81
         12 |          3        0.03       99.84
         13 |          1        0.01       99.85
         14 |          2        0.02       99.87
         17 |          1        0.01       99.88
         20 |          1        0.01       99.89
         21 |          1        0.01       99.90
         23 |          1        0.01       99.91
         31 |          2        0.02       99.93
         32 |          1        0.01       99.94
         51 |          1        0.01       99.95
         53 |          1        0.01       99.96
         54 |          1        0.01       99.97
         57 |          1        0.01       99.98
         68 |          1        0.01       99.99
         76 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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