Table:
text: Anna Thompson (athlete)
Achievements
Achievements
Year_ Tournament Venue Result_ Extra
2006 World Road Running Championships Debrecen , Hungary 18th 20 km run
2007 World Cross Country Championships Mombasa , Kenya 18th Senior race
2007 World Cross Country Championships Mombasa , Kenya 6th Team competition
2008 World Cross Country Championships Edinburgh , Scotland 3rd Team competition

text: Anna Thompson (athlete)
Achievements
Achievements
Year_ Tournament Venue Result_ Extra
2002 Commonwealth Games Manchester , England 9th 5000 m
2002 World Cross Country Championships Dublin , Ireland 15th Short race
2002 World Cross Country Championships Dublin , Ireland 5th Team competition
2005 World Cross Country Championships St Etienne , France 19th Short race
2005 World Cross Country Championships St Etienne , France 7th Team competition
2005 World Cross Country Championships St Etienne , France 16th Long race
2005 World Cross Country Championships St Etienne , France 8th Team competition
2006 Commonwealth Games Melbourne , Australia 5th 10,000 m
2006 World Cross Country Championships Fukuoka , Japan 3rd Team competition

Question: How many years overall has Wehre Anna Thompson finished 3rd in Edinburgh, Scotland?