Summary statistics for g_c1thru4_12 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thru4_12 | 4,272 4993478 1.70e+07 1 5.26e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018