Frequencies for first 10,000 rows of pct012l201 variable in sf12000860us27 dataset :

   94 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,866       98.66       98.66
          1 |        106        1.06       99.72
          2 |         13        0.13       99.85
          3 |          6        0.06       99.91
          4 |          2        0.02       99.93
          5 |          3        0.03       99.96
          6 |          1        0.01       99.97
          8 |          1        0.01       99.98
         11 |          1        0.01       99.99
         16 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017