Frequencies for first 10,000 rows of pct012k136 variable in sf12000860us26 dataset :

   29 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,819       88.19       88.19
          1 |        854        8.54       96.73
          2 |        192        1.92       98.65
          3 |         70        0.70       99.35
          4 |         28        0.28       99.63
          5 |          9        0.09       99.72
          6 |          8        0.08       99.80
          7 |          2        0.02       99.82
          8 |          2        0.02       99.84
          9 |          1        0.01       99.85
         10 |          1        0.01       99.86
         12 |          3        0.03       99.89
         16 |          1        0.01       99.90
         19 |          1        0.01       99.91
         20 |          1        0.01       99.92
         26 |          1        0.01       99.93
         32 |          1        0.01       99.94
         36 |          1        0.01       99.95
         48 |          1        0.01       99.96
         60 |          1        0.01       99.97
         78 |          1        0.01       99.98
         81 |          1        0.01       99.99
         82 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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