condition	mean	min	max
4 h after light	576.2	576.2	576.2
8 h after light	625.45	593.4	657.5
12 h after light	483.5	446.0	521.0
4 h after dark	469.25	448.6	489.9
8 h after dark	552.55	487.2	617.9
12 h after dark	527.45	511.1	543.8