Summary statistics for a_c6_90 variable in prds_hosp10_yr2017 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_90 | 1,496 -4906425 1.45e+07 -2.07e+08 9522813 by Jean Roth , jroth@nber.org , 26 Oct 2018