Frequencies for first 10,000 rows of urine variable in nhamcsed2003 dataset :

 urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,348       83.48       83.48
        yes |      1,652       16.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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