Poor28.66.6<30 minutes to 1 hour>0.8<1 to 2 hours>0.6<2 to 3 hours>0063.31007.899.1 Non-poor24.95.2<30 minutes to 1 hour>0.5<1 to 2 hours>0.1<2 to 3 hours>0069.21006.298.8