Summary statistics for c_1_c7_40 variable in hosp_rollup2552_96_2000 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_40 | 3,757 1413514 2867620 1 7.50e+07 by Jean Roth , jroth@nber.org , 8 Sep 2018