condition	mean	min	max
4 h after light	13.65895	12.85	14.4679
8 h after light	12.6653	12.6251	12.7055
12 h after light	18.871699999999997	18.621	19.1224
4 h after dark	22.5539	21.4819	23.6259
8 h after dark	20.959	20.0805	21.8375
12 h after dark	19.6997	18.3907	21.0087