condition	mean	min	max
4 h after light	10.2842935	9.774254	10.794333
8 h after light	8.585595999999999	8.423123	8.748069
12 h after light	7.850341	7.690672	8.01001
4 h after dark	8.037512	7.927676	8.147348
8 h after dark	8.7736105	8.605562	8.941659
12 h after dark	8.605562	8.605562	8.605562