Summary statistics for a8_c2_29 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_29 | 929 -265033.8 1430016 -1.54e+07 1.27e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018