Frequencies for first 10,000 rows of immed variable in nhamcsed2001 dataset :

immediacy with which |
   patient should be |
                seen |      Freq.     Percent        Cum.
---------------------+-----------------------------------
   Unknown/no triage |      2,450       24.50       24.50
Less than 15 minutes |      1,716       17.16       41.66
      15- 60 minutes |      2,921       29.21       70.87
   >1 hour - 2 hours |      1,778       17.78       88.65
 >2 hours - 24 hours |      1,135       11.35      100.00
---------------------+-----------------------------------
               Total |     10,000      100.00

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