Summary statistics for a7_3_c9_2 variable in hosp_rollup2552_96_2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_3_c9_2 | 199 775255.3 3376800 -252832 3.66e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018