Summary statistics for a_c6_49 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_49 | 2,489 -45901.98 458725.2 -3163156 2.03e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018