condition	mean	min	max
4 h after light	12.17975	10.4603	13.8992
8 h after light	3.6064749999999997	3.45449	3.75846
12 h after light	4.039085	3.78022	4.29795
4 h after dark	9.107195	8.45945	9.75494
8 h after dark	16.0398	14.5363	17.5433
12 h after dark	13.233699999999999	12.4175	14.0499