Summary statistics for a7_3_c9_2 variable in hosp_rollup2552_96_2003 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c9_2 | 131 641217.5 2047118 -1040795 1.89e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018