Frequencies for first 10,000 rows of pct012h100 variable in sf12010860us27 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,767       97.67       97.67
          1 |        138        1.38       99.05
          2 |         37        0.37       99.42
          3 |         23        0.23       99.65
          4 |         13        0.13       99.78
          5 |         10        0.10       99.88
          6 |          6        0.06       99.94
          7 |          4        0.04       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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