Summary statistics for a_c2_10 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c2_10 | 6,056 276353.2 553434.1 -436134 1.04e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018