Summary statistics for a7_3_c7_1 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c7_1 | 20 269980.7 805087.6 1109 3587856 by Jean Roth , jroth@nber.org , 21 Apr 2018