Summary statistics for a8_c2_48 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_48 | 129 -86913.23 2776642 -1.56e+07 1.99e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018