condition	mean	min	max
4 h after light	6830.6	6830.6	6830.6
8 h after light	7114.7	6867.4	7362.0
12 h after light	7563.15	7348.3	7778.0
4 h after dark	8206.55	7924.6	8488.5
8 h after dark	8718.95	7998.0	9439.9
12 h after dark	7031.65	6428.2	7635.1