Summary statistics for a_c2_5 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_5 | 5,679 3722870 7404628 -2.42e+07 1.42e+08 by Jean Roth , jroth@nber.org , 7 Sep 2018