Frequencies for first 10,000 rows of pct012d096 variable in sf12010880us23 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,790       97.90       97.90
          1 |        169        1.69       99.59
          2 |         24        0.24       99.83
          3 |          9        0.09       99.92
          5 |          3        0.03       99.95
          6 |          1        0.01       99.96
          8 |          1        0.01       99.97
          9 |          1        0.01       99.98
         10 |          1        0.01       99.99
         14 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017