Summary statistics for a_c2_6 variable in hosp_rollup2552_96_2005 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_6 | 6,174 1.69e+07 6.43e+07 -5219041 2.01e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018