Frequencies for first 10,000 rows of pct012n134 variable in sf12000860us29 dataset :

   27 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,214       92.14       92.14
          1 |        497        4.97       97.11
          2 |        126        1.26       98.37
          3 |         63        0.63       99.00
          4 |         40        0.40       99.40
          5 |         11        0.11       99.51
          6 |         13        0.13       99.64
          7 |          7        0.07       99.71
          8 |          6        0.06       99.77
          9 |          2        0.02       99.79
         10 |          4        0.04       99.83
         11 |          4        0.04       99.87
         12 |          1        0.01       99.88
         13 |          1        0.01       99.89
         14 |          1        0.01       99.90
         16 |          1        0.01       99.91
         17 |          2        0.02       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         23 |          2        0.02       99.97
         27 |          1        0.01       99.98
         44 |          1        0.01       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017