condition	mean	min	max
4 h after light	7137.5	7137.5	7137.5
8 h after light	7743.9	7084.3	8403.5
12 h after light	8141.0	7861.2	8420.8
4 h after dark	8518.15	7785.2	9251.1
8 h after dark	8986.8	8657.4	9316.2
12 h after dark	8590.05	7656.5	9523.6