Summary statistics for a_c6_16 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_16 | 1,938 -175437.7 881428.4 -1.44e+07 9127504 by Jean Roth , jroth@nber.org , 9 Sep 2018