Summary statistics for a_c6_18 variable in prds_hosp10_yr2014 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_18 | 360 -1.12e+07 3.63e+07 -4.86e+08 1.85e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018