condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	2.3	1.3	3.3
12 h after light	1.5499999999999998	1.4	1.7
4 h after dark	3.3499999999999996	2.8	3.9
8 h after dark	1.4	1.3	1.5
12 h after dark	2.2	1.9	2.5