condition	mean	min	max
4 h after light	7.820906666666667	7.70695	7.92431
8 h after light	7.957346666666666	7.747669999999999	8.1987
12 h after light	7.983596666666666	7.81595	8.1636
4 h after dark	8.14842	7.898289999999999	8.47949
8 h after dark	7.9035166666666665	7.818239999999999	7.969310000000001
12 h after dark	8.07804	8.00361	8.13987