Summary statistics for a_c6_14 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_14 | 1,863 -40689.24 440047 -1.64e+07 2023262 by Jean Roth , jroth@nber.org , 5 Sep 2018