condition	mean	min	max
4 h after light	8.110115	8.025259	8.194971
8 h after light	7.698449	7.542109	7.854789
12 h after light	8.1545285	7.62467	8.684387
4 h after dark	7.939493499999999	7.176324	8.702663
8 h after dark	8.268430500000001	8.165496	8.371365
12 h after dark	8.025259	8.025259	8.025259