Frequencies for first 10,000 rows of urine variable in nhamcsed2005 dataset :

 urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      7,833       78.33       78.33
        yes |      2,167       21.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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