condition	mean	min	max
4 h after light	8.997765000000001	8.6508	9.34473
8 h after light	8.86253	8.64182	9.08324
12 h after light	9.065725	8.80886	9.32259
4 h after dark	12.04325	11.2945	12.792
8 h after dark	10.8635	10.7764	10.9506
12 h after dark	11.34205	11.022	11.6621