Frequencies for first 10,000 rows of pct012k062 variable in sf12000860us26 dataset :

   59 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,299       92.99       92.99
          1 |        587        5.87       98.86
          2 |         67        0.67       99.53
          3 |         22        0.22       99.75
          4 |         10        0.10       99.85
          5 |          4        0.04       99.89
          6 |          2        0.02       99.91
          9 |          1        0.01       99.92
         12 |          1        0.01       99.93
         13 |          3        0.03       99.96
         21 |          1        0.01       99.97
         31 |          2        0.02       99.99
         45 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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