condition	mean	min	max
4 h after light	8.909120000000001	8.65896	9.15928
8 h after light	7.54068	7.17359	7.90777
12 h after light	7.438355	7.38352	7.49319
4 h after dark	8.46828	8.14164	8.79492
8 h after dark	8.988624999999999	8.94369	9.03356
12 h after dark	9.673295	9.39652	9.95007