condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	13.0	4.4	21.6
12 h after light	8.1	1.0	15.2
4 h after dark	7.1000000000000005	1.9	12.3
8 h after dark	1.1	0.9	1.3
12 h after dark	10.1	2.7	17.5