Summary statistics for a_c6_18 variable in prds_hosp10_yr2017 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_18 | 201 -2.37e+07 6.72e+07 -6.94e+08 2.57e+07 by Jean Roth , jroth@nber.org , 26 Oct 2018