Summary statistics for a8_c2_39 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_39 | 1,414 -330872.9 2855288 -5.33e+07 4.72e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018