condition	mean	min	max
4 h after light	4.43092	4.11203	4.74981
8 h after light	4.636505	4.08169	5.19132
12 h after light	6.529325	6.15062	6.90803
4 h after dark	8.71455	8.05511	9.37399
8 h after dark	7.15967	7.14864	7.1707
12 h after dark	5.911405	5.56581	6.257