Frequencies for first 10,000 rows of incshx variable in nhamcsed2015 dataset :

In the last |
 two years, |
did your ED |
   increase |
 the number |
of standard |
  treatment |
        spa |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |         57        0.57        0.57
    Unknown |        569        5.69        6.26
        Yes |      1,839       18.39       24.65
         No |      7,535       75.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017