condition	mean	min	max
4 h after light	14.36295	14.1892	14.5367
8 h after light	18.06025	17.1312	18.9893
12 h after light	15.9556	15.0167	16.8945
4 h after dark	20.549933333333332	19.8419	21.636
8 h after dark	17.6628	16.3876	20.0146
12 h after dark	19.99876666666667	19.239	20.4408