condition	mean	min	max
4 h after light	6.3	6.3	6.3
8 h after light	17.85	10.1	25.6
12 h after light	24.1	21.0	27.2
4 h after dark	9.7	3.2	16.2
8 h after dark	23.35	19.0	27.7
12 h after dark	11.5	6.1	16.9