Table:
text: Jarrod Bannister
Achievements
Achievements
Year_ Competition Venue Position_ Event
2000 Oceania Youth Championships Adelaide , Australia 1st Javelin
2002 World Junior Championships Kingston , Jamaica 4th Javelin
2006 Commonwealth Games Melbourne , Australia 6th Javelin
2008 Olympic Games Beijing , PR China 6th Javelin
2010 Commonwealth Games Delhi , India 1st Javelin
2011 World Championships Daegu , South Korea 7th Javelin

Question: What is the total of years if position is 6th and if competition is Commonwealth Games for Jarrod Bannister?

Question: What is the highest year for Jarrod Bannister when the venue is Beijing, PRC?

Question: What is the average year that the competition for Jarrod Bannister Oceania Youth Championships is?

Question: What is the event when position 4 is for Jarrod Bannister?