Frequencies for first 10,000 rows of urgent variable in nhamcsed2000 dataset :

immediacy with which |
   patient should be |
                seen |      Freq.     Percent        Cum.
---------------------+-----------------------------------
   Unknown/no triage |      3,060       30.60       30.60
Less than 15 minutes |      1,318       13.18       43.78
      15- 60 minutes |      3,024       30.24       74.02
   >1 hour - 2 hours |      1,600       16.00       90.02
 >2 hours - 24 hours |        998        9.98      100.00
---------------------+-----------------------------------
               Total |     10,000      100.00

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