Summary statistics for a8_c2_12 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_12 | 3,725 -4306067 1.06e+07 -2.40e+08 150 by Jean Roth , jroth@nber.org , 21 Apr 2018