Frequencies for first 10,000 rows of pct012k164 variable in sf12000860us26 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,185       91.85       91.85
          1 |        634        6.34       98.19
          2 |        119        1.19       99.38
          3 |         37        0.37       99.75
          4 |          6        0.06       99.81
          5 |          3        0.03       99.84
          6 |          1        0.01       99.85
          7 |          2        0.02       99.87
          8 |          3        0.03       99.90
         11 |          2        0.02       99.92
         12 |          1        0.01       99.93
         19 |          1        0.01       99.94
         20 |          1        0.01       99.95
         22 |          1        0.01       99.96
         23 |          1        0.01       99.97
         28 |          1        0.01       99.98
         34 |          1        0.01       99.99
         47 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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