Summary statistics for a_c6_5 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_5 | 3,576 -7694.35 2014909 -1.87e+07 3.92e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018