Summary statistics for h4_2_hha1_c1_30 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- h4_2~1_c1_30 | 25 -279.4 925.6309 -3265 1110 by Jean Roth , jroth@nber.org , 24 Aug 2018