Summary statistics for a_c1_194 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_194 | 2,777 2903612 1.49e+07 -3038223 3.41e+08 by Jean Roth , jroth@nber.org , 24 Aug 2018