condition	mean	min	max
4 h after light	2.16365	1.88266	2.44464
8 h after light	4.444015	4.16139	4.72664
12 h after light	3.338025	3.20322	3.47283
4 h after dark	6.514145	5.79153	7.23676
8 h after dark	4.221615	4.06979	4.37344
12 h after dark	3.35958	2.67774	4.04142