condition	mean	min	max
4 h after light	4.6	4.6	4.6
8 h after light	7.85	6.2	9.5
12 h after light	13.6	9.5	17.7
4 h after dark	10.75	6.7	14.8
8 h after dark	18.1	18.1	18.1
12 h after dark	24.25	13.9	34.6