Summary statistics for a_c6_8 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_8 | 3,138 -47325.34 820133.3 -1.35e+07 1.77e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018