condition	mean	min	max
4 h after light	9.156979999999999	8.95002	9.29163
8 h after light	9.433566666666666	9.03967	9.65579
12 h after light	8.75925	8.48151	8.89958
4 h after dark	8.735906666666667	8.49385	8.964189999999999
8 h after dark	8.527866666666666	8.18469	8.71243
12 h after dark	8.27192	8.09575	8.50659