Summary statistics for d_4_ipf_c2_200 variable in prds_hosp10_yr2013 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_ipf_c2~0 | 75 466705.1 647314.2 2762 4618940 by Jean Roth , jroth@nber.org , 24 Aug 2018