condition	mean	min	max
4 h after light	32.7	32.7	32.7
8 h after light	9.2	9.1	9.3
12 h after light	13.95	4.2	23.7
4 h after dark	19.3	16.3	22.3
8 h after dark	10.95	5.6	16.3
12 h after dark	33.1	25.5	40.7