Summary statistics for a_c6_53 variable in hosp_rollup2552_96_2002 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_53 | 2,542 -197160.8 696630.2 -1.48e+07 3140803 by Jean Roth , jroth@nber.org , 10 Sep 2018