Frequencies for first 10,000 rows of incshx variable in nhamcsed2010 dataset :

In the last |
 two years, |
has your ED |
  increased |
 the number |
of standard |
  treatment |
         sp |      Freq.     Percent        Cum.
------------+-----------------------------------
        yes |      2,201       22.01       22.01
         no |      7,799       77.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016