condition	mean	min	max
4 h after light	2.835285	2.82426	2.84631
8 h after light	3.71589	3.63354	3.79824
12 h after light	3.883915	3.626	4.14183
4 h after dark	7.988335	7.52993	8.44674
8 h after dark	6.102475	5.58762	6.61733
12 h after dark	4.865075	4.85802	4.87213