Summary statistics for a7_3_c10_2 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c10_2 | 509 158707.6 1459294 -2.24e+07 1.44e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018