Summary statistics for a_c6_37 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_37 | 1,997 -174339.6 841367.1 -1.26e+07 1.48e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018