Summary statistics for a_c6_61 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_61 | 4,299 -890877.7 2342090 -2.41e+07 4.53e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018