Frequencies for first 10,000 rows of oriented variable in nhamcsed2008 dataset :

 oriented x |
          3 |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |      1,179       11.79       11.79
    unknown |        953        9.53       21.32
        yes |      7,616       76.16       97.48
         no |        252        2.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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