Summary statistics for a_c6_30 variable in prds_hosp10_yr2013 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_30 | 4,463 -996335.3 2719805 -6.00e+07 1.61e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018