Frequencies for first 10,000 rows of pct012h099 variable in sf12010860us27 dataset :

   96 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,722       97.22       97.22
          1 |        155        1.55       98.77
          2 |         37        0.37       99.14
          3 |         21        0.21       99.35
          4 |         25        0.25       99.60
          5 |          9        0.09       99.69
          6 |          9        0.09       99.78
          7 |          9        0.09       99.87
          8 |          3        0.03       99.90
          9 |          3        0.03       99.93
         10 |          1        0.01       99.94
         11 |          3        0.03       99.97
         12 |          2        0.02       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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