Frequencies for first 10,000 rows of pct012n189 variable in sf12000860us29 dataset :

   82 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,860       98.60       98.60
          1 |        119        1.19       99.79
          2 |         15        0.15       99.94
          3 |          2        0.02       99.96
          4 |          2        0.02       99.98
          5 |          1        0.01       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017