condition	mean	min	max
4 h after light	34.2	34.2	34.2
8 h after light	17.4	4.9	29.9
12 h after light	7.85	2.8	12.9
4 h after dark	4.4	3.9	4.9
8 h after dark	14.9	6.0	23.8
12 h after dark	2.5	2.0	3.0