Summary statistics for a_c6_6 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_6 | 6,039 -2359433 1.80e+07 -6.86e+08 4.62e+08 by Jean Roth , jroth@nber.org , 9 Sep 2018