condition	mean	min	max
0 h after light	6.942335	6.78844	7.09623
4 h after light	7.62348	7.20228	8.04468
8 h after light	7.18507	6.559	7.81114
4 h after dark	8.71499	7.89908	9.5309
8 h after dark	6.60279	6.22913	6.97645
12 h after dark	6.36988	5.74769	6.99207