condition	mean	min	max
4 h after light	1.9509249999999998	1.81396	2.08789
8 h after light	2.0082	1.96935	2.04705
12 h after light	1.99304	1.93852	2.04756
4 h after dark	1.879405	1.75068	2.00813
8 h after dark	1.410025	1.15332	1.66673
12 h after dark	1.56006	1.26937	1.85075