Frequencies for first 10,000 rows of pct012n166 variable in sf12000860us29 dataset :

   59 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,680       96.80       96.80
          1 |        231        2.31       99.11
          2 |         52        0.52       99.63
          3 |         18        0.18       99.81
          4 |          4        0.04       99.85
          5 |          3        0.03       99.88
          6 |          3        0.03       99.91
          7 |          2        0.02       99.93
          9 |          3        0.03       99.96
         13 |          3        0.03       99.99
         17 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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