condition	mean	min	max
4 h after light	494.8	494.8	494.8
8 h after light	422.45	396.9	448.0
12 h after light	314.9	298.8	331.0
4 h after dark	515.85	325.6	706.1
8 h after dark	575.8	547.5	604.1
12 h after dark	485.85	425.1	546.6