condition	mean	min	max
4 h after light	6.22279	6.15203	6.29355
8 h after light	6.0834150000000005	5.13248	7.03435
12 h after light	3.9726250000000003	3.81022	4.13503
4 h after dark	3.994526666666667	3.107	4.94306
8 h after dark	3.163056666666667	2.75406	3.87866
12 h after dark	4.791616666666667	4.06181	5.43556