Frequencies for first 10,000 rows of incshx variable in nhamcsed2006 dataset :

  in last 2 |
 years, has |
         ed |
increased # |
of standard |
  treatment |
    spaces? |      Freq.     Percent        Cum.
------------+-----------------------------------
        yes |      2,508       25.08       25.08
         no |      6,939       69.39       94.47
    unknown |        341        3.41       97.88
      blank |        212        2.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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