Frequencies for first 10,000 rows of pct012n082 variable in sf12000860us29 dataset :

   79 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,885       98.85       98.85
          1 |         97        0.97       99.82
          2 |          8        0.08       99.90
          3 |          3        0.03       99.93
          4 |          2        0.02       99.95
          5 |          3        0.03       99.98
          6 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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