Summary statistics for c_1_c7_55 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_55 | 1,055 2.44e+07 4.23e+07 153 7.51e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018