Frequencies for first 10,000 rows of pct012l203 variable in sf12000860us27 dataset :

   96 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,913       99.13       99.13
          1 |         69        0.69       99.82
          2 |         11        0.11       99.93
          3 |          4        0.04       99.97
          4 |          1        0.01       99.98
          5 |          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