condition	mean	min	max
4 h after light	3.41828	2.77587	4.06069
8 h after light	3.79465	3.73156	3.85774
12 h after light	7.310075	7.29546	7.32469
4 h after dark	7.838143333333333	7.24606	8.34967
8 h after dark	7.591183333333333	6.92465	7.9909
12 h after dark	3.25258	2.05863	3.87241