Frequencies for first 10,000 rows of pct012e164 variable in sf12010860us24 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,839       98.39       98.39
          1 |        146        1.46       99.85
          2 |         14        0.14       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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