Summary statistics for a_c6_22 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_22 | 409 -222489.9 3549327 -2.29e+07 2.55e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018