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

  Did your ED go on ambulance diversion |
                               in 2014? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  Blank |         57        0.57        0.57
                                Unknown |      1,010       10.10       10.67
Hospital's ED went on ambulance diversi |      3,328       33.28       43.95
Hospital's ED did not go on diversion i |      5,605       56.05      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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