Frequencies for first 10,000 rows of pct012k061 variable in sf12000860us26 dataset :

   58 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,240       92.40       92.40
          1 |        622        6.22       98.62
          2 |         97        0.97       99.59
          3 |         21        0.21       99.80
          4 |          3        0.03       99.83
          5 |          3        0.03       99.86
          6 |          1        0.01       99.87
          7 |          2        0.02       99.89
          8 |          1        0.01       99.90
         10 |          1        0.01       99.91
         11 |          2        0.02       99.93
         12 |          1        0.01       99.94
         18 |          1        0.01       99.95
         19 |          1        0.01       99.96
         23 |          2        0.02       99.98
         47 |          1        0.01       99.99
         48 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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