condition	mean	min	max
4 h after light	6.6	6.6	6.6
8 h after light	6.050000000000001	4.4	7.7
12 h after light	8.9	8.0	9.8
4 h after dark	8.65	5.0	12.3
8 h after dark	8.35	6.1	10.6
12 h after dark	12.7	5.5	19.9