Summary statistics for a_c6_44 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_44 | 3,822 -200428.7 1173458 -5.99e+07 1.25e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018