Frequencies for ime_tacmivgroup variable in impact2012 dataset : DRG Grouper | Version for | ime_tacmiv | Freq. Percent Cum. ------------+----------------------------------- 29 | 3,501 100.00 100.00 ------------+----------------------------------- Total | 3,501 100.00 by Jean Roth , jroth@nber.org , 16 Dec 2016