condition	mean	min	max
4 h after light	18.6	18.6	18.6
8 h after light	12.25	7.0	17.5
12 h after light	15.8	9.3	22.3
4 h after dark	29.65	13.5	45.8
8 h after dark	4.6	4.5	4.7
12 h after dark	22.55	11.6	33.5