Summary statistics for a_c6_8 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_8 | 3,466 -77665.05 1486240 -2.27e+07 4.22e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018