condition	mean	min	max
4 h after light	15.9633	15.7733	16.1533
8 h after light	13.7467	13.5952	13.8982
12 h after light	15.5592	15.2187	15.8997
4 h after dark	20.38935	19.0645	21.7142
8 h after dark	19.59855	19.31	19.8871
12 h after dark	18.87515	18.725	19.0253