condition	mean	min	max
4 h after light	13.1064	12.9094	13.3034
8 h after light	17.2908	16.4005	18.1811
12 h after light	23.51025	21.3318	25.6887
4 h after dark	21.5835	20.6077	22.5593
8 h after dark	20.29585	19.9529	20.6388
12 h after dark	17.314100000000003	16.8438	17.7844