condition	mean	min	max
4 h after light	3.1	3.1	3.1
8 h after light	13.1	1.9	24.3
12 h after light	13.75	1.1	26.4
4 h after dark	26.7	21.0	32.4
8 h after dark	12.5	2.3	22.7
12 h after dark	10.85	1.5	20.2