Frequencies for first 10,000 rows of PCT012B096 variable in sf12000860us17 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,290       92.90       92.90
          1 |        484        4.84       97.74
          2 |        116        1.16       98.90
          3 |         62        0.62       99.52
          4 |         26        0.26       99.78
          5 |          8        0.08       99.86
          6 |          6        0.06       99.92
          7 |          3        0.03       99.95
          8 |          2        0.02       99.97
          9 |          2        0.02       99.99
         11 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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