condition	mean	min	max
4 h after light	549.2	549.2	549.2
8 h after light	555.45	520.9	590.0
12 h after light	501.65	425.7	577.6
4 h after dark	557.8	418.3	697.3
8 h after dark	641.8	598.2	685.4
12 h after dark	520.3	431.1	609.5