Frequencies for first 10,000 rows of pct012k049 variable in sf12000860us26 dataset :

   46 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,798       87.98       87.98
          1 |        892        8.92       96.90
          2 |        199        1.99       98.89
          3 |         55        0.55       99.44
          4 |         20        0.20       99.64
          5 |         15        0.15       99.79
          6 |          4        0.04       99.83
          7 |          3        0.03       99.86
          8 |          2        0.02       99.88
         12 |          1        0.01       99.89
         16 |          3        0.03       99.92
         25 |          1        0.01       99.93
         26 |          1        0.01       99.94
         30 |          1        0.01       99.95
         34 |          1        0.01       99.96
         37 |          1        0.01       99.97
         45 |          1        0.01       99.98
         48 |          1        0.01       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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