Summary statistics for h4_2_hha1_c2_10 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- h4_2~1_c2_10 | 157 684.3376 8094.962 -19960 54537 by Jean Roth , jroth@nber.org , 24 Aug 2018