Summary statistics for c_1_c6_30 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_30 | 718 3.34e+07 6.83e+07 612 8.36e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018