condition	mean	min	max
4 h after light	7547.8	7547.8	7547.8
8 h after light	8177.4	8086.8	8268.0
12 h after light	7991.85	7657.8	8325.9
4 h after dark	8391.95	8243.2	8540.7
8 h after dark	8151.5	7336.7	8966.3
12 h after dark	8505.95	8489.0	8522.9