condition	mean	min	max
4 h after light	14.3281705	12.752112	15.904229
8 h after light	18.800359	18.520906	19.079812
12 h after light	21.713995500000003	17.688603	25.739388
4 h after dark	22.650434500000003	20.300923	24.999946
8 h after dark	15.528478	15.153796	15.90316
12 h after dark	16.587421	16.587421	16.587421