Summary statistics for c_1_c7_91 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_91 | 4,725 2.72e+07 3.82e+07 1 5.42e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018