How long did LeBron sign a contract for the Miami Heat?

LeBron James last year 08-09 season made 14.3 million for that year of his contract. This seems low and for Lebron it is this deal was part of his signing from his rookie year which has a cap for them and there contracts. To put that in to perspective Wally with the Cavs last year made more that Lebron at 14.5 million. This year 09-10 season Lebron will make a little more around 14.8 then after he signs his new contract he should make around 20-24 million