Frequencies for first 10,000 rows of oriented variable in nhamcsed2005 dataset :

 oriented x |
          3 |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        770        7.70        7.70
        yes |      7,451       74.51       82.21
         no |        252        2.52       84.73
    unknown |      1,527       15.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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