Summary statistics for a7_3_c11_4 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c11_4 | 1,805 180461.1 534229.3 -3797935 1.01e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018