Summary statistics for g_c1thru4_4 variable in prds_hosp10_yr2015 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thru4_4 | 5,906 4.92e+07 1.15e+08 -1.55e+08 3.41e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018