Finding the Highest Value in alphanumeric strings

Hi,

I have a column of one to three digit numbers (I5:I34), some of which contain an asterisk after them. In I35 i want a formula to find the highest value from that column. Additionally, if two numbers in the column are the same value, but one contains an asterisk after it, it should use that value in I35, instead of the one without the asterisk.

Any help appreciated!