Frequencies for first 10,000 rows of regdiv variable in nhamcsed2015 dataset :

  Is ambulance |
     diversion |
      actively |
  managed on a |
regional level |
   versus each |
      hospital |      Freq.     Percent        Cum.
---------------+-----------------------------------
         Blank |         57        0.57        0.57
       Unknown |        376        3.76        4.33
Not applicable |      6,615       66.15       70.48
           Yes |      1,596       15.96       86.44
            No |      1,356       13.56      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017