Summary statistics for a_c6_97 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_97 | 163 2044458 1.72e+07 -3.75e+07 1.96e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018