Frequencies for first 10,000 rows of buncreat variable in nhamcsed2011 dataset :

BUN/creatin |
        ine |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      7,047       70.47       70.47
        Yes |      2,953       29.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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