condition	mean	min	max
4 h after light	20.3	20.3	20.3
8 h after light	6.3	5.8	6.8
12 h after light	9.55	2.6	16.5
4 h after dark	5.85	4.1	7.6
8 h after dark	25.9	4.5	47.3
12 h after dark	18.35	14.7	22.0