condition	mean	min	max
4 h after light	16.0	16.0	16.0
8 h after light	16.25	8.7	23.8
12 h after light	2.25	1.9	2.6
4 h after dark	11.25	5.9	16.6
8 h after dark	2.0	1.7	2.3
12 h after dark	3.25	1.1	5.4