Summary statistics for a_c6_61 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_61 | 4,136 -642836.3 997935.7 -3.22e+07 8540107 by Jean Roth , jroth@nber.org , 3 Sep 2018