Summary statistics for a7_1_c1_3 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a7_1_c1_3 | 4,999 7.06e+07 1.37e+08 1 3.07e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018