Frequencies for first 10,000 rows of pct012j100 variable in sf12000860us25 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,718       97.18       97.18
          1 |        216        2.16       99.34
          2 |         41        0.41       99.75
          3 |         18        0.18       99.93
          4 |          3        0.03       99.96
          5 |          3        0.03       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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