Summary statistics for c_1_c7_61 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_61 | 4,933 2917612 4219711 3 6.51e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018