condition	mean	min	max
4 h after light	538.6	538.6	538.6
8 h after light	555.6	506.3	604.9
12 h after light	539.9	498.3	581.5
4 h after dark	454.6	434.6	474.6
8 h after dark	464.55	453.8	475.3
12 h after dark	531.45	477.1	585.8