Summary statistics for a8_c2_49 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_49 | 3,113 -2587494 1.14e+07 -2.53e+08 1.76e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018