condition	mean	min	max
4 h after light	23.2	23.2	23.2
8 h after light	20.85	13.5	28.2
12 h after light	17.4	14.1	20.7
4 h after dark	15.0	0.8	29.2
8 h after dark	7.35	2.1	12.6
12 h after dark	23.15	3.0	43.3