condition	mean	min	max
4 h after light	2.2	2.2	2.2
8 h after light	5.0	2.9	7.1
12 h after light	2.75	2.4	3.1
4 h after dark	5.8	4.6	7.0
8 h after dark	17.7	5.9	29.5
12 h after dark	3.05	3.0	3.1