Summary statistics for a_c6_96 variable in hosp_rollup2552_96_2007 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_96 | 291 -1780399 2.68e+07 -4.54e+08 1.54e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018