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:
| Title | Details | Track Title | Label | Year |
| --- | --- | --- | --- | --- |
| Machineries of Joy Vol. 3 | 2xCD, Limited | Forever | Out of Line | 2004.0 |
| Awake the Machines Vol. 5 | 2xCD, Limited | Tomorrow (Edit) | Out Of Line | 2005.0 |
| Extreme Sündenfall 6 | 2xCD | Vapor | Indigo | 2007.0 |
| Machineries Of Joy Vol. 4 | 2xCD, Limited | Spilling Blood | Out Of Line | 2007.0 |
| Sonic Seducer Cold Hands Seduction Vol. 69 | 2xCD | Tomorrow | Sonic Seducer | 2007.0 |
| Das Bunker 4: Brighter Than A Thousand Suns | 2xCD | Forever (Solitary Experiments Remix) | Das Bunker | 2008.0 |
Question:
What average year contains the title of machineries of joy vol. 4?
Answer:
2007.0