Frequencies for first 10,000 rows of pct012o082 variable in sf12000860us30 dataset :

   79 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,238       92.38       92.38
          1 |        581        5.81       98.19
          2 |        127        1.27       99.46
          3 |         37        0.37       99.83
          4 |         12        0.12       99.95
          5 |          3        0.03       99.98
          6 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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