condition	mean	min	max
4 h after light	6.2	6.2	6.2
8 h after light	33.4	31.0	35.8
12 h after light	36.5	13.9	59.1
4 h after dark	33.5	32.5	34.5
8 h after dark	21.7	7.6	35.8
12 h after dark	32.5	19.7	45.3