Frequencies for first 10,000 rows of diagscrn variable in nhamcsed2015 dataset 

    Were diagnostic services ordered or |
                              provided? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                     No |      2,723       27.23       27.23
                                    Yes |      7,155       71.55       98.78
Entire item blank, including 'None' box |        122        1.22      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017