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

      did your hospital go on ambulance |
                     diversion in 2007? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
     hospital went on diversion in 2007 |      4,470       44.70       44.70
hospital did not go on diversion in 200 |      3,903       39.03       83.73
           diversion data not available |      1,627       16.27      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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