condition	mean	min	max
4 h after light	8.6704905	8.045454	9.295527
8 h after light	7.745823	7.462681	8.028965
12 h after light	7.840368	7.534815	8.145921
4 h after dark	8.604502	8.570812	8.638192
8 h after dark	8.35003	8.090913	8.609147
12 h after dark	8.185253	8.185253	8.185253