Summary statistics for a8_c2_49 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_49 | 3,231 -2632179 1.27e+07 -2.35e+08 2.07e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018