condition	mean	min	max
4 h after light	5.1	5.1	5.1
8 h after light	21.25	16.5	26.0
12 h after light	7.0	6.9	7.1
4 h after dark	19.65	13.1	26.2
8 h after dark	58.2	56.4	60.0
12 h after dark	35.1	33.6	36.6