condition	mean	min	max
4 h after light	2.2	2.2	2.2
8 h after light	5.35	2.9	7.8
12 h after light	19.75	16.3	23.2
4 h after dark	6.800000000000001	6.7	6.9
8 h after dark	3.3499999999999996	2.6	4.1
12 h after dark	7.8500000000000005	7.4	8.3