condition	mean	min	max
4 h after light	8.6757995	8.417962	8.933637
8 h after light	7.7687425	7.716694	7.820791
12 h after light	7.5851965	6.866785	8.303608
4 h after dark	7.8653865	7.646142	8.084631
8 h after dark	7.7804015	7.445173	8.11563
12 h after dark	8.563086	8.563086	8.563086