Does the salary increase apply to pending leave salary from previous year?

Dear Sir,

I have a question about leave salary.

I have completed 2 successful years in a company in Abu Dhabi, my salary was 5000 (Including Basic & Housing Allowance) in the first year and I got 1000 as an increment in the second year.

So when I completed my 2nd year my salary is 6000. Now I need to request my two months' Leave Salary.

Kindly advise me how much I am able to receive, 11000 or 12000.