condition	mean	min	max
4 h after light	8.65605	8.5838	8.792860000000001
8 h after light	8.609720000000001	8.43196	8.802430000000001
12 h after light	8.566206666666666	8.28328	8.710289999999999
4 h after dark	8.149306666666666	7.8497	8.31166
8 h after dark	7.97931	7.7323699999999995	8.2652
12 h after dark	8.0215	7.798710000000001	8.33505