Frequencies for first 10,000 rows of pct012g204 variable in sf12010860us26 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,888       98.88       98.88
          1 |        103        1.03       99.91
          2 |          7        0.07       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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