How much will I earn on my ULIP?

I have a ULIP with normal charges. I wish to know how much will I earn at the end of 20 years if the overall rate percentage is 15%.
In scenario I : I will be depositing 24, 000 per year for three years.
In Scenario II: I will be depositing 24,000 per year for 20 years.
So at the end of 20 years how much will I earn, there will be no premature withdrawals.