Summary statistics for a_c6_24 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_24 | 398 -64751.35 1195938 -1.99e+07 1.02e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018