Summary statistics for d_4_hos_c6_68 variable in hosp_rollup2552_96_2001 datase Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- d_4_hos~6_68 | 30 155200.6 369941.7 80 1603401 by Jean Roth , jroth@nber.org , 20 Jan 2017