Summary statistics for c_1_c6_61 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_61 | 4,966 7877641 1.38e+07 9 2.22e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018