Summary statistics for d_5_sub2_c9_57 variable in hosp_rollup2552_96_1997 datas Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_5_~2_c9_57 | 4 7786.5 7645.635 1707 18407 by Jean Roth , jroth@nber.org , 5 Sep 2018