Summary statistics for a7_3_c11_3 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c11_3 | 2,044 469120.8 986708.8 -4564502 1.47e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018