Summary statistics for a_c6_1 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_1 | 4,836 -330686.7 5443184 -2.64e+08 1.67e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018