Summary statistics for a_c6_39 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_39 | 1,034 -207642.6 614104.3 -1.10e+07 1010641 by Jean Roth , jroth@nber.org , 21 Apr 2018