Summary statistics for a7_3_c11_4 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c11_4 | 1,931 268794.9 914854.5 -5299597 2.12e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018