Summary statistics for c_1_c5_63 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c5_63 | 753 4168628 1.23e+07 1 2.34e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018