Summary statistics for a7_1_c6_4 variable in prds_hosp10_yr2017 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_1_c6_4 | 2,093 2.40e+07 7.15e+07 -1.58e+07 1.02e+09 by Jean Roth , jroth@nber.org , 26 Oct 2018