Frequencies for first 10,000 rows of pct012n079 variable in sf12000860us29 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,874       98.74       98.74
          1 |         99        0.99       99.73
          2 |         15        0.15       99.88
          3 |          5        0.05       99.93
          4 |          5        0.05       99.98
          5 |          1        0.01       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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