How many EX Series expansions of Pokemon cards have been released?

There have been 10 EX Series expansions of Pokemon cards released. Here is the complete list:

1. EX Ruby & Sapphire (2003)

2. EX Dragon (2004)

3. EX Team Rocket Returns (2004)

4. EX Hidden Legends (2005)

5. EX FireRed & LeafGreen (2005)

6. EX Delta Species (2006)

7. EX Emerald (2006)

8. EX Power Keepers (2007)

9. EX Legend Maker (2008)

10. EX POP Series 3 (2008)

It's important to note that the EX Series was replaced by the "Diamond & Pearl" series in 2008.