Table:
text: Luke Adams
Achievements
Achievements
Year_ Competition Venue Position_ Notes
1999 World Race Walking Cup Mézidon-Canon , France 55th 20km
2002 World Race Walking Cup Turin, Italy 29th 50km
2002 Commonwealth Games Manchester , England 2nd 20km
2003 World Championships Paris, France 5th 20 km
2004 Olympic Games Athens , Greece 16th 20 km
2004 World Race Walking Cup Naumburg , Germany 14th 20km
2005 World Championships Helsinki , Finland 10th 20 km
2006 Commonwealth Games Melbourne , Australia 2nd 20km
2006 World Race Walking Cup La Coruña , Spain 18th 20km
2007 World Championships Osaka , Japan 7th 20 km

text: Luke Adams
Achievements
Achievements
Year_ Competition Venue Position_ Notes
2008 Olympic Games Beijing , PR China 6th 20 km
2009 World Championships Berlin, Germany 18th 20 km
2009 World Championships Berlin, Germany 6th 50 km
2010 World Race Walking Cup Chihuahua, Mexico DNF 50km
2010 Commonwealth Games Delhi , India 2nd 20km
2012 Olympic Games London , United Kingdom 27th 50 km

Question: How many years did he hold the 2nd place position under Luke Adams?

Question: What position did notes of 20 km and a year before 2002 under Luke Adams?