Frequencies for first 10,000 rows of diagscrn variable in nhamcsopd2007 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |      1,214       12.14       12.14
              yes |      8,667       86.67       98.81
entire item blank |        119        1.19      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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