Summary statistics for a_c6_8 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_8 | 3,314 -50417.07 1238084 -1.61e+07 3.48e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018