Summary statistics for a7_3_c10_2 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c10_2 | 82 1281290 3695371 -1026913 2.16e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018