Frequencies for first 10,000 rows of pct012e016 variable in sf12010880us24 dataset :

   13 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,801       98.01       98.01
          1 |        190        1.90       99.91
          2 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017