condition	mean	min	max
4 h after light	3.6	3.6	3.6
8 h after light	24.15	16.5	31.8
12 h after light	1.3	0.9	1.7
4 h after dark	1.3	0.6	2.0
8 h after dark	2.2	1.4	3.0
12 h after dark	5.3	1.9	8.7