Summary statistics for a_c6_60 variable in hosp_rollup2552_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_60 | 2,108 -905885.6 3425691 -7.32e+07 2.10e+07 by Jean Roth , jroth@nber.org , 6 Sep 2018