Summary statistics for c_1_c6_61 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_61 | 4,895 1457196 2702354 1 6.23e+07 by Jean Roth , jroth@nber.org , 7 Sep 2018