Frequencies for first 10,000 rows of pct012b206 variable in sf12010860us21 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,270       92.70       92.70
          1 |        503        5.03       97.73
          2 |        133        1.33       99.06
          3 |         47        0.47       99.53
          4 |         25        0.25       99.78
          5 |         10        0.10       99.88
          6 |          6        0.06       99.94
          7 |          3        0.03       99.97
         10 |          1        0.01       99.98
         11 |          1        0.01       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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