Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Competition | Venue | Position | Notes |
| --- | --- | --- | --- | --- |
| 2004.0 | World Junior Championships | Grosseto , Italy | 4th (heats) | 800 m |
| 2005.0 | World Youth Championships | Marrakech , Morocco | 2nd | 1500 m |
| 2005.0 | Asian Championships | Incheon , South Korea | 3rd | 1500 m |
| 2006.0 | World Cross Country Championships | Fukuoka , Japan | 11th | Team competition |
| 2006.0 | World Junior Championships | Beijing , China | 3rd | 1500 m |
| 2006.0 | Asian Games | Doha , Qatar | 2nd | 1500 m |
| 2008.0 | Summer Olympics | Beijing , China | 7th (heats) | 5000 m |
| 2009.0 | World Championships | Berlin , Germany | 11th | 5000 m |
| 2009.0 | East Asian Games | Hong Kong , China | 1st | 5000 m |
Question:
What is the average year with 7th (heats) position?
Answer:
2008.0