Summary statistics for c_1_c5_4501 variable in prds_hosp10_yr2010 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c5_4501 | 3 3.81e+07 2.85e+07 5273870 5.62e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018