Summary statistics for a_c6_16 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_16 | 1,983 -539485.5 3303239 -5.12e+07 1.33e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018