condition	mean	min	max
4 h after light	16.5	16.5	16.5
8 h after light	2.4000000000000004	1.6	3.2
12 h after light	2.55	2.4	2.7
4 h after dark	14.65	11.5	17.8
8 h after dark	5.5	1.2	9.8
12 h after dark	2.15	1.8	2.5