Frequencies for first 10,000 rows of pct012g197 variable in sf12010860us26 dataset :

   90 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,476       94.76       94.76
          1 |        428        4.28       99.04
          2 |         60        0.60       99.64
          3 |         24        0.24       99.88
          4 |          7        0.07       99.95
          5 |          1        0.01       99.96
          6 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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