Summary statistics for a8_c2_21 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_21 | 260 -287096.2 949262.1 -1.11e+07 6217152 by Jean Roth , jroth@nber.org , 9 Sep 2018