condition	mean	min	max
0 h after light	6.97988	6.93763	7.02213
4 h after light	3.49534	3.43784	3.55284
8 h after light	6.689755	6.13281	7.2467
4 h after dark	6.0055250000000004	5.61243	6.39862
8 h after dark	6.29775	6.15654	6.43896
12 h after dark	5.242595	4.77831	5.70688