Summary statistics for c_1_c6_30 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_30 | 715 2.45e+07 5.16e+07 1 8.43e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018