condition	mean	min	max
4 h after light	18.490000000000002	17.7986	19.1814
8 h after light	15.2638	14.5625	15.9651
12 h after light	14.085	13.9922	14.1778
4 h after dark	14.6778	13.7852	15.5704
8 h after dark	17.6833	17.6485	17.7181
12 h after dark	18.5773	17.545	19.6096