condition	mean	min	max
0 h after light	6.070285	6.05497	6.0856
4 h after light	4.567855	3.7871	5.34861
8 h after light	3.0522799999999997	2.91567	3.18889
4 h after dark	3.858755	3.66031	4.0572
8 h after dark	5.085325	4.52447	5.64618
12 h after dark	4.27589	3.3575	5.19428