condition	mean	min	max
4 h after light	20.2764765	17.995055	22.557898
8 h after light	14.445962999999999	14.12922	14.762706
12 h after light	14.423716500000001	13.720212	15.127221
4 h after dark	15.032044500000001	13.818661	16.245428
8 h after dark	15.648847	12.471758	18.825936
12 h after dark	18.485936	18.485936	18.485936