Summary statistics for b_1_c0_18 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- b_1_c0_18 | 3,418 806516.1 1488854 -127944 2.32e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018