condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	4.4	3.2	5.6
12 h after light	2.4	1.7	3.1
4 h after dark	4.55	2.4	6.7
8 h after dark	21.05	6.0	36.1
12 h after dark	5.7	4.9	6.5