Summary statistics for a_c6_65 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_65 | 2,336 -40533.92 671436 -1.65e+07 2.40e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018