condition	mean	min	max
4 h after light	7.04179	6.93157	7.15201
8 h after light	7.9230149999999995	7.76061	8.08542
12 h after light	11.6849	10.6971	12.6727
4 h after dark	13.14655	12.9149	13.3782
8 h after dark	12.12895	12.1108	12.1471
12 h after dark	8.17012	7.73578	8.60446