condition	mean	min	max
4 h after light	4.805995	3.36497	6.24702
8 h after light	2.84959	2.51777	3.18141
12 h after light	5.6082350000000005	5.38821	5.82826
4 h after dark	15.45795	13.7809	17.135
8 h after dark	13.443200000000001	12.5751	14.3113
12 h after dark	10.6172	10.2054	11.029