Frequencies for first 10,000 rows of pct012g097 variable in sf12010860us26 dataset :

   94 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,913       99.13       99.13
          1 |         72        0.72       99.85
          2 |         13        0.13       99.98
          3 |          1        0.01       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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