Frequencies for first 10,000 rows of pct012n076 variable in sf12010860us33 dataset :

   73 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,839       98.39       98.39
          1 |        129        1.29       99.68
          2 |         14        0.14       99.82
          3 |          8        0.08       99.90
          4 |          2        0.02       99.92
          5 |          4        0.04       99.96
          6 |          1        0.01       99.97
          7 |          1        0.01       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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