condition	mean	min	max
4 h after light	2.119945	1.91258	2.32731
8 h after light	3.3789350000000002	3.34912	3.40875
12 h after light	4.045475	3.29413	4.79682
4 h after dark	4.88787	4.12413	5.68646
8 h after dark	4.354913333333333	3.79746	4.92257
12 h after dark	3.4675866666666666	3.19282	3.79408