condition	mean	min	max
0 h after light	6.214945	5.98275	6.44714
4 h after light	6.75723	6.15427	7.36019
8 h after light	7.18047	6.90821	7.45273
4 h after dark	10.884899999999998	10.5057	11.2641
8 h after dark	9.061465	8.95632	9.16661
12 h after dark	6.32119	5.15079	7.49159