Frequencies for first 10,000 rows of pct012j205 variable in sf12010880us29 dataset :

   98 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,501       95.01       95.01
          1 |        308        3.08       98.09
          2 |         99        0.99       99.08
          3 |         39        0.39       99.47
          4 |         15        0.15       99.62
          5 |         16        0.16       99.78
          6 |          7        0.07       99.85
          7 |          6        0.06       99.91
          8 |          3        0.03       99.94
          9 |          3        0.03       99.97
         10 |          2        0.02       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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