condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	35.95	23.2	48.7
12 h after light	12.75	3.0	22.5
4 h after dark	30.75	17.7	43.8
8 h after dark	53.65	44.9	62.4
12 h after dark	45.0	39.9	50.1