Frequencies for first 10,000 rows of urine variable in namcs2009 dataset :

 urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,182       91.82       91.82
        yes |        818        8.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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