Frequencies for first 10,000 rows of diagscrn variable in namcs2008 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |        355        3.55        3.55
              yes |      9,618       96.18       99.73
entire item blank |         27        0.27      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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