condition	mean	min	max
4 h after light	6.29988	5.03194	7.56782
8 h after light	6.33464	6.09536	6.57392
12 h after light	6.6855	6.40763	6.96337
4 h after dark	13.11665	13.0905	13.1428
8 h after dark	14.7126	14.4792	14.946
12 h after dark	13.8107	13.1734	14.448