condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	8.85	2.1	15.6
12 h after light	3.85	1.5	6.2
4 h after dark	29.5	26.9	32.1
8 h after dark	28.15	3.5	52.8
12 h after dark	18.7	5.3	32.1