Summary statistics for h4_2_hha3_c1_22 variable in prds_hosp10_yr2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- h4_2~3_c1_22 | 2 1209529 273725.3 1015976 1403082 by Jean Roth , jroth@nber.org , 24 Aug 2018