Frequencies for first 10,000 rows of pct012n186 variable in sf12000860us29 dataset :

   79 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,852       98.52       98.52
          1 |        114        1.14       99.66
          2 |         24        0.24       99.90
          3 |          6        0.06       99.96
          6 |          1        0.01       99.97
          7 |          1        0.01       99.98
          9 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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