Summary statistics for a8_c2_44 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_44 | 4,090 -326556.7 4119603 -1.40e+08 8.85e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018