Summary statistics for a_c6_5 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_5 | 4,128 -45475.34 4780598 -5.32e+07 1.08e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018