Frequencies for first 10,000 rows of bioter variable in nhamcsopd2005 dataset :

   has hosp |
      rec'd |
funding for |
    bioterr |
preparednes |
         s? |      Freq.     Percent        Cum.
------------+-----------------------------------
        yes |      5,178       51.78       51.78
         no |      1,385       13.85       65.63
    unknown |      3,167       31.67       97.30
      blank |        270        2.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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