Summary statistics for a7_3_c15_2 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c15_2 | 502 665756.9 2555087 -366921 3.40e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018