Summary statistics for a_c6_41 variable in hosp_rollup2552_96_2004 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_41 | 3,991 -2913.011 4614192 -3.90e+07 1.27e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018