condition	mean	min	max
4 h after light	20.9	20.9	20.9
8 h after light	5.15	3.0	7.3
12 h after light	25.9	25.3	26.5
4 h after dark	8.75	5.4	12.1
8 h after dark	28.15	26.8	29.5
12 h after dark	21.55	4.9	38.2