Summary statistics for a_c6_15 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_15 | 1,888 -345995.4 2019223 -3.68e+07 1.47e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018