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 | Event |
| --- | --- | --- | --- | --- |
| 2005.0 | European U23 Championships | Erfurt , Germany | 2nd | 4 x 400 m relay |
| 2006.0 | Commonwealth Games | Melbourne , Australia | 4th | 4 x 400 m relay |
| 2007.0 | World Championships | Osaka , Japan | 4th (heats) | 400 m |
| 2007.0 | World Championships | Osaka , Japan | 6th | 4 x 400 m relay |
| 2008.0 | Olympic Games | Beijing , China | 8th (semis) | 400 m |
| 2008.0 | Olympic Games | Beijing , China | 4th | 4 x 400 m relay |
Question:
How many years was the 400 m event in the olympic games?
Answer:
1.0