Summary statistics for c_1_c7_44 variable in hosp_rollup2552_96_1999 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_44 | 5,502 6298525 1.68e+07 2 4.84e+08 by Jean Roth , jroth@nber.org , 7 Sep 2018