condition	mean	min	max
4 h after light	5.343833333333333	5.290769999999999	5.44332
8 h after light	5.26775	5.19209	5.3102
12 h after light	5.27068	5.18979	5.36994
4 h after dark	5.383273333333333	5.21252	5.644880000000001
8 h after dark	5.17322	5.09874	5.25784
12 h after dark	5.36061	5.200880000000001	5.44672