Table:
text: Climate of Ireland
Temperature
Temperature records
Year_ _2011 _2010 _2009 _2008 _2007 _2006 _2005
Highest mean annual temperature °C () Valentia Observatory °C () Valentia Observatory °C () Valentia Observatory °C () Valentia Observatory °C () Valentia Observatory °C () Valentia Observatory and Rosslare °C () Valentia Observatory
Lowest mean annual temperature °C () Knock Airport °C () Knock Airport °C () Knock Airport °C () Knock Airport °C () Knock Airport °C () Knock Airport °C () Knock Airport

Question: What is 2009 if the year is "Highest Mean Annual Temperature" in the climate of Ireland?