Frequencies for first 10,000 rows of urine variable in nhamcsed2010 dataset :

 Urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      7,486       74.86       74.86
        yes |      2,514       25.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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