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who won rookie of the year nba 2004
Lebron James won the 2003-2004 rookie of the year award.
how does a player get the nba rookie of the year award
The National Basketball Association's Rookie of the Year Award is an annual National Basketball Association (NBA) award given to the top rookie(s) of the regular season.

Question: who is the most recent winner of the award
Self-contained rewrite: who is the most recent winner of the nba rookie of the year award