condition	mean	min	max
0 h after light	7.948465	7.81691	8.08002
4 h after light	4.832065	4.74812	4.91601
8 h after light	6.161935	6.05346	6.27041
4 h after dark	8.36274	8.01806	8.70742
8 h after dark	7.084265	7.01039	7.15814
12 h after dark	6.52191	6.27452	6.7693