Summary statistics for a_c6_8 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_8 | 3,187 -59559.31 793890.4 -1.45e+07 1.44e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018