condition	mean	min	max
4 h after light	18.10585	15.695	20.5167
8 h after light	13.1173	12.6976	13.537
12 h after light	11.478685	9.43317	13.5242
4 h after dark	16.001350000000002	15.6725	16.3302
8 h after dark	19.219	18.2504	20.1876
12 h after dark	25.391	24.6499	26.1321