Summary statistics for a_c6_1 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_1 | 606 -1734355 1.38e+07 -2.34e+08 1.14e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018