condition	mean	min	max
4 h after light	15.866900000000001	15.4446	16.2892
8 h after light	15.22305	14.918	15.5281
12 h after light	15.637550000000001	15.0136	16.2615
4 h after dark	20.2184	19.6698	20.767
8 h after dark	18.8478	17.7493	19.9463
12 h after dark	18.0804	17.608	18.5528