They got 100 gold coins and wanted to divide it amongst themselves.

Only the oldest pirate has the right to propose how to share the gold coins.

If he gets the majority that is 50% or more vote for his proposal (including his vote), then the coins will be shared according to his proposal, but if he does not get 50% votes, then the other pirates would kill him and the process gets repeated with next oldest pirate.

Assuming that the pirates are very intelligent and very greedy, how would the oldest pirate make the proposal so that he gets maximum number of gold coins and escapes death?