Frequencies for first 10,000 rows of diagscrn variable in nhamcsopd2005 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |      1,141       11.41       11.41
              yes |      8,797       87.97       99.38
entire item blank |         62        0.62      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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