Summary statistics for a_c2_54 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_54 | 2,125 94842.14 438457.3 -91947 1.22e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018