Frequencies for first 10,000 rows of urine variable in nhamcsed2012 dataset :

 Urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      7,741       77.41       77.41
        Yes |      2,259       22.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016