Summary statistics for a_c6_18 variable in prds_hosp10_yr2015 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_18 | 357 -1.25e+07 4.01e+07 -5.23e+08 1.06e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018