condition	mean	min	max
4 h after light	6.2	6.2	6.2
8 h after light	17.6	3.7	31.5
12 h after light	16.65	6.1	27.2
4 h after dark	30.75	16.5	45.0
8 h after dark	13.7	4.2	23.2
12 h after dark	1.8	1.8	1.8