Summary statistics for a8_c2_49 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_49 | 342 -2314503 1.44e+07 -1.96e+08 2.93e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018