Frequencies for first 10,000 rows of diagscrn variable in nhamcsopd2001 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               No |      1,612       16.12       16.12
              Yes |      8,284       82.84       98.96
Entire item blank |        104        1.04      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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