condition	mean	min	max
4 h after light	7481.0	7481.0	7481.0
8 h after light	7973.05	7549.1	8397.0
12 h after light	7980.25	7579.2	8381.3
4 h after dark	9439.55	8006.2	10872.9
8 h after dark	8406.15	7839.4	8972.9
12 h after dark	7923.85	7200.8	8646.9