Summary statistics for g2_c2_18 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g2_c2_18 | 4,506 1.49e+08 2.50e+08 -917 4.93e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018