Summary statistics for a8_c2_49 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_49 | 214 -2109705 1.09e+07 -1.11e+08 5.27e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018