condition	mean	min	max
4 h after light	4.9	4.9	4.9
8 h after light	6.7	4.5	8.9
12 h after light	5.4	3.1	7.7
4 h after dark	28.85	9.0	48.7
8 h after dark	60.2	51.7	68.7
12 h after dark	8.2	7.6	8.8