Summary statistics for c_1_c7_57 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_57 | 2,229 2.61e+07 2.83e+07 678 3.43e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018