condition	mean	min	max
4 h after light	15.667000000000002	13.7692	17.5648
8 h after light	15.286249999999999	14.4289	16.1436
12 h after light	15.1675	14.727	15.608
4 h after dark	20.4773	19.5985	21.7286
8 h after dark	25.632	21.3336	29.2615
12 h after dark	18.6645	17.3643	20.0825