Summary statistics for c_1_c6_30 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_30 | 472 4.96e+07 9.35e+07 807 8.05e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018