condition	mean	min	max
4 h after light	8.11919	8.01627	8.23884
8 h after light	8.34315	8.1333	8.58055
12 h after light	8.352356666666665	8.00818	8.53742
4 h after dark	8.462983333333334	8.150039999999999	8.82205
8 h after dark	8.391350000000001	8.047930000000001	8.78621
12 h after dark	8.02966	7.74463	8.29102