Frequencies for first 10,000 rows of pct012n081 variable in sf12000860us29 dataset :

   78 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,894       98.94       98.94
          1 |         78        0.78       99.72
          2 |         19        0.19       99.91
          3 |          7        0.07       99.98
          5 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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