 Exports and imports by air in 2005 were estimated at £ 62 @.@ 7 billion and £ 59 @.@ 6 billion respectively , with a significant majority of air freight operations being conducted with countries outside of the EU , and express freight operations transporting 5 per cent by value of all UK exports in 2004 . Whilst export / import facilities provide opportunities for international trade and competition , they are not without negative effect , and British horticulture is one example of domestic industry damaged by cheap imports . 
