condition	mean	min	max
4 h after light	16.7	16.7	16.7
8 h after light	6.5	5.4	7.6
12 h after light	3.2	2.9	3.5
4 h after dark	11.85	5.0	18.7
8 h after dark	17.95	3.5	32.4
12 h after dark	2.6	0.9	4.3