Frequencies for days variable in ime_gme2552_96_1995 dataset : Total | Hospital | Days | Freq. Percent Cum. ------------+----------------------------------- 2726 | 1 50.00 50.00 19045 | 1 50.00 100.00 ------------+----------------------------------- Total | 2 100.00 by Jean Roth , jroth@nber.org , 21 Apr 2018