Frequencies for first 10,000 rows of pct012n077 variable in sf12010860us33 dataset :

   74 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,839       98.39       98.39
          1 |        130        1.30       99.69
          2 |         17        0.17       99.86
          3 |          6        0.06       99.92
          4 |          2        0.02       99.94
          5 |          1        0.01       99.95
          6 |          2        0.02       99.97
          7 |          2        0.02       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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