Summary statistics for c_1_c7_40 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_40 | 2,312 5456332 1.20e+07 7 2.27e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018