condition	mean	min	max
4 h after light	5.67935	5.4854	5.88413
8 h after light	5.688446666666667	5.48735	5.9459800000000005
12 h after light	6.28997	6.15874	6.50612
4 h after dark	6.860286666666667	6.837110000000001	6.883260000000001
8 h after dark	6.381390000000001	6.29699	6.46004
12 h after dark	6.166296666666667	6.04345	6.366230000000001