condition	mean	min	max
4 h after light	9.4499	7.2546	10.995
8 h after light	11.78622	3.55876	18.8155
12 h after light	20.741466666666668	13.381	29.2682
4 h after dark	9.614966666666666	8.43029	11.0249
8 h after dark	6.10931	5.0943	7.9355
12 h after dark	18.7549	15.6391	21.1248