Frequencies for first 10,000 rows of pct012f201 variable in sf12000860us21 dataset :

   94 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,862       98.62       98.62
          1 |        107        1.07       99.69
          2 |         17        0.17       99.86
          3 |          6        0.06       99.92
          4 |          5        0.05       99.97
          5 |          2        0.02       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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