Summary statistics for c_1_c7_42 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_42 | 1,144 3.12e+07 7.36e+07 66 1.24e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018