condition	mean	min	max
4 h after light	0.20610635	0.0877927	0.32442
8 h after light	0.2035345	0.192014	0.215055
12 h after light	0.1891125	0.145916	0.232309
4 h after dark	0.332521	0.129382	0.53566
8 h after dark	0.560647	0.40544	0.715854
12 h after dark	0.381472	0.360243	0.402701