Frequencies for first 10,000 rows of prdiag5 variable in namcs2014 dataset :

 Is diagnosis #5 probable, questionable |
                           or rule out? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                   No diagnosis entered |      8,456       84.56       84.56
Dx is probable, questionable, or ruleou |          4        0.04       84.60
Dx is not probable, questionable, ruleo |      1,540       15.40      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017