Summary statistics for a_c6_1 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_1 | 3,615 -402449.9 1824144 -3.36e+07 1.87e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018