condition	mean	min	max
4 h after light	2.6	2.6	2.6
8 h after light	21.5	8.7	34.3
12 h after light	4.4	3.8	5.0
4 h after dark	3.45	3.4	3.5
8 h after dark	2.3499999999999996	1.9	2.8
12 h after dark	2.85	2.0	3.7