Summary statistics for a_c6_44 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_44 | 3,905 -227998.4 1246220 -4.32e+07 1.44e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018