condition	mean	min	max
4 h after light	20.792788	17.995055	23.590521
8 h after light	16.5646715	16.429031	16.700312
12 h after light	17.7070335	17.165725	18.248342
4 h after dark	13.232200500000001	12.645496	13.818905
8 h after dark	15.721957	14.596203	16.847711
12 h after dark	15.996883	15.996883	15.996883