Summary statistics for a8_c2_9 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_9 | 2,398 -34296.24 86236.89 -2161938 83716 by Jean Roth , jroth@nber.org , 21 Apr 2018