condition	mean	min	max
4 h after light	8.3568725	6.958818	9.754927
8 h after light	8.2139515	8.206109	8.221794
12 h after light	7.559666	7.502826	7.616506
4 h after dark	7.713573500000001	7.081625	8.345522
8 h after dark	7.7408435	7.189965	8.291722
12 h after dark	8.130646	8.130646	8.130646