Summary statistics for a7_3_c9_3 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c9_3 | 5,500 728513.9 1471862 -1.12e+07 2.01e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018