condition	mean	min	max
4 h after light	590.1	590.1	590.1
8 h after light	676.85	539.7	814.0
12 h after light	550.25	495.5	605.0
4 h after dark	676.1	647.6	704.6
8 h after dark	905.0	788.7	1021.3
12 h after dark	883.4	871.5	895.3