Frequencies for first 10,000 rows of urine variable in namcs1999 dataset :

 urinalysis |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,318       93.18       93.18
          1 |        682        6.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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