Summary statistics for a8_c2_47 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_47 | 2,184 -331068.7 2646776 -5.73e+07 1.55e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018