Summary statistics for a_c6_30 variable in prds_hosp10_yr2015 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_30 | 4,609 -1175126 3009047 -6.23e+07 1.87e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018