Summary statistics for a_c6_16 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_16 | 2,001 -100745.9 555555.2 -1.11e+07 7455445 by Jean Roth , jroth@nber.org , 5 Sep 2018