Summary statistics for a_c6_37 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_37 | 2,820 -689336.2 3064720 -1.07e+08 2.16e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018