Summary statistics for c_1_c6_47 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_47 | 1,555 1300969 2775993 95 3.31e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018