Summary statistics for a_c2_10 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_10 | 6,137 607956.6 1158385 -1911117 1.74e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018