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

       Were |
 diagnostic |
   services |
 ordered or |
  provided? |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      2,937       29.37       29.37
        yes |      6,933       69.33       98.70
  no answer |        130        1.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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