Summary statistics for c_1_c6_31 variable in prds_hosp10_yr2013 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c6_31 | 3,244 2.11e+07 3.82e+07 482 5.37e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018