Summary statistics for a8_c2_37 variable in hosp_rollup2552_96_2009 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_37 | 5,793 -1523219 1.20e+07 -5.17e+08 4.09e+08 by Jean Roth , jroth@nber.org , 21 Apr 2018