condition	mean	min	max
0 h after light	6.1018	6.09636	6.10724
4 h after light	15.22775	12.4235	18.032
8 h after light	6.89429	6.03142	7.75716
4 h after dark	5.244895	3.00553	7.48426
8 h after dark	4.534745	1.50104	7.56845
12 h after dark	4.46667	0.0	8.93334