Summary statistics for a7_3_c9_3 variable in hosp_rollup2552_96_1997 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c9_3 | 5,843 856134.3 1715981 -7767571 3.01e+07 by Jean Roth , jroth@nber.org , 5 Sep 2018