Summary statistics for a_c2_6 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_6 | 6,005 5684689 1.01e+07 -1533836 1.41e+08 by Jean Roth , jroth@nber.org , 3 Sep 2018