vacancy under a FCA

Practising CA having  less than 3 years of practice can have 1 and above 3  to 5 years can have 2 Article Assistant....
 

A CA having continuous practice upto 3 years - 1 Article

A CA having continuous practice more than 3 but upto 5 years - 3 Article

A CA having continuous practice more than 5 but upto 10 years - 7 Article

A CA having continuous practice more than 10 years  - 10 Articles.

can u tell me that  HOW many seats are avilable with a FCA for articles???