Summary statistics for a_c6_37 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_37 | 1,953 -973893.7 3869344 -1.19e+08 1.01e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018