Summary statistics for a8_c2_3 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_3 | 1,767 -485365.6 1453501 -2.33e+07 1.01e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018