Frequencies for first 10,000 rows of immed variable in nhamcsed2002 dataset :

immediacy with which |
   patient should be |
                seen |      Freq.     Percent        Cum.
---------------------+-----------------------------------
   Unknown/no triage |      1,458       14.58       14.58
Less than 15 minutes |      2,401       24.01       38.59
      15- 60 minutes |      3,421       34.21       72.80
   >1 hour - 2 hours |      1,919       19.19       91.99
 >2 hours - 24 hours |        801        8.01      100.00
---------------------+-----------------------------------
               Total |     10,000      100.00

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