condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	10.6	4.5	16.7
12 h after light	8.55	7.8	9.3
4 h after dark	25.45	8.1	42.8
8 h after dark	22.15	17.1	27.2
12 h after dark	9.85	2.7	17.0