Frequencies for first 10,000 rows of hospital variable in person dataset :

   Taken to |
   Hospital |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,153       41.53       41.53
          1 |      5,620       56.20       97.73
          9 |        227        2.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016