Summary statistics for d_4_ipf_c1_200 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_i~c1_200 | 23 298700.1 194857.8 19985 812437 by Jean Roth , jroth@nber.org , 24 Aug 2018