Summary statistics for a8_c2_29 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_29 | 215 -1057365 3112330 -2.25e+07 5701441 by Jean Roth , jroth@nber.org , 21 Apr 2018