condition	mean	min	max
4 h after light	2.8332550000000003	2.38097	3.28554
8 h after light	4.356920000000001	4.18733	4.52651
12 h after light	6.12291	5.37838	6.86744
4 h after dark	7.25401	6.89646	7.61156
8 h after dark	6.698285	6.69256	6.70401
12 h after dark	4.987055	4.53657	5.43754