Frequencies for first 10,000 rows of ambdiv variable in nhamcsed2012 dataset :

  Did your ED go on ambulance diversion |
                               in 2011? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  Blank |        152        1.52        1.52
                                Unknown |      1,339       13.39       14.91
Hospital's ED went on ambulance diversi |      3,985       39.85       54.76
Hospital's ED did not go on diversion i |      4,524       45.24      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016