Summary statistics for d4_sub2_c2_68 variable in hosp_rollup2552_96_2004 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d4_sub2~2_68 | 3 20009.33 23524.67 4597 47087 by Jean Roth , jroth@nber.org , 21 Apr 2018