Summary statistics for a_c6_6 variable in hosp_rollup2552_96_2008 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_6 | 6,333 -6979955 7.24e+07 -4.10e+09 1.14e+09 by Jean Roth , jroth@nber.org , 21 Apr 2018