condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	5.5	4.3	6.7
12 h after light	36.45	36.0	36.9
4 h after dark	25.1	23.3	26.9
8 h after dark	9.8	6.1	13.5
12 h after dark	5.0	3.9	6.1