Frequencies for first 10,000 rows of tothrdivr variable in nhamcsed2010 dataset :

  Number of hours hospital was |
on ambulance diversion in 2009 |      Freq.     Percent        Cum.
-------------------------------+-----------------------------------
                         blank |         40        0.40        0.40
                not applicable |      5,177       51.77       52.17
       1-99 hours on diversion |      1,677       16.77       68.94
    100-499 hours on diversion |        798        7.98       76.92
500 or more hours on diversion |        805        8.05       84.97
  diversion data not available |      1,503       15.03      100.00
-------------------------------+-----------------------------------
                         Total |     10,000      100.00

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