Limit the number of rows incase of tie in Ranking

Hi,

I have a scenario where i am showing top 5 products based on the defects reported, but the products are allocated the same rank in case of defects reported is same or equal and in that case number of rows will be more than 5 any idea how we can limit the rows in case of ranking tie in webi ?

also can we apply dense rank at universe level on a universe level variable as defects reported is not a database field but it is a universe level variable.

Thanks,

Charu