Frequencies for first 10,000 rows of diagscrn variable in namcs2004 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               No |      1,888       18.88       18.88
              Yes |      7,997       79.97       98.85
Entire item blank |        115        1.15      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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