condition	mean	min	max
0 h after light	7.17934	6.84973	7.50895
4 h after light	6.20557	6.2045	6.20664
8 h after light	7.988215	6.69451	9.28192
4 h after dark	7.408175	6.78626	8.03009
8 h after dark	4.25537	4.17401	4.33673
12 h after dark	6.65625	6.32664	6.98586