Summary statistics for c_1_c7_90 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- c_1_c7_90 | 3,031 1.55e+07 4.99e+07 1 1.63e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018