Summary statistics for a_c2_6 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_6 | 3,998 3.58e+07 1.50e+08 -8729601 3.96e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018