condition	mean	min	max
0 h after light	9.098970000000001	8.96366	9.23428
4 h after light	6.569255	5.87083	7.26768
8 h after light	6.96419	6.87168	7.0567
4 h after dark	9.276975	8.34995	10.204
8 h after dark	9.1987	8.49876	9.89864
12 h after dark	9.171215	8.83436	9.50807