Frequencies for tacmivgroup variable in impact2003 dataset :

DRG Grouper |
Version for |
     tacmiv |      Freq.     Percent        Cum.
------------+-----------------------------------
         20 |      4,322      100.00      100.00
------------+-----------------------------------
      Total |      4,322      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016