condition	mean	min	max
4 h after light	8.9	8.9	8.9
8 h after light	27.85	23.7	32.0
12 h after light	21.35	14.6	28.1
4 h after dark	17.4	13.0	21.8
8 h after dark	22.65	5.9	39.4
12 h after dark	18.5	7.6	29.4