Summary statistics for a8_c2_16 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_16 | 4,380 -413050.8 786974.5 -1.69e+07 309004 by Jean Roth , jroth@nber.org , 21 Apr 2018