condition	mean	min	max
4 h after light	6148.9	6148.9	6148.9
8 h after light	7287.2	7254.9	7319.5
12 h after light	9305.2	9011.1	9599.3
4 h after dark	8489.55	8160.2	8818.9
8 h after dark	9315.0	8281.0	10349.0
12 h after dark	8095.85	6859.2	9332.5