Summary statistics for a_c6_16 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_16 | 1,898 -467976.4 2890770 -5.54e+07 9820649 by Jean Roth , jroth@nber.org , 21 Apr 2018