condition	mean	min	max
4 h after light	1.5	1.5	1.5
8 h after light	2.45	1.8	3.1
12 h after light	2.4	1.9	2.9
4 h after dark	1.2000000000000002	0.8	1.6
8 h after dark	1.5	1.0	2.0
12 h after dark	1.4	0.9	1.9