Frequencies for first 10,000 rows of pct012a101 variable in sf12010860us20 dataset :

   98 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,366       83.66       83.66
          1 |      1,062       10.62       94.28
          2 |        339        3.39       97.67
          3 |        140        1.40       99.07
          4 |         56        0.56       99.63
          5 |         24        0.24       99.87
          6 |          5        0.05       99.92
          7 |          3        0.03       99.95
          8 |          3        0.03       99.98
         10 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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