Summary statistics for g_c1thru4_21 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thru4_21 | 858 609668.3 3018062 -4083730 7.08e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018