condition	mean	min	max
0 h after light	6.57254	6.30339	6.84169
4 h after light	6.45836	6.01929	6.89743
8 h after light	6.563335	6.0694	7.05727
4 h after dark	11.2354	10.8482	11.6226
8 h after dark	9.153490000000001	9.11053	9.19645
12 h after dark	7.250785	6.47579	8.02578