condition	mean	min	max
4 h after light	6.156716666666666	5.88817	6.45092
8 h after light	6.10862	6.06025	6.18564
12 h after light	6.09916	6.03338	6.20795
4 h after dark	6.17449	5.99987	6.27671
8 h after dark	6.271356666666667	6.09783	6.3966199999999995
12 h after dark	6.286116666666667	6.08415	6.49874