Summary statistics for a_c6_60 variable in hosp_rollup2552_96_1996 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_60 | 2,064 -677933.3 2648426 -7.38e+07 1.86e+07 by Jean Roth , jroth@nber.org , 3 Sep 2018