Frequencies for first 10,000 rows of urine variable in namcs1995 dataset :

 urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,737       87.37       87.37
          1 |      1,263       12.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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