Summary statistics for a_c6_61 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_61 | 4,438 -1159130 2112384 -2.64e+07 4370459 by Jean Roth , jroth@nber.org , 21 Apr 2018