Category talk:2003 games

Confusion
Is this category (and the other categories about games released in certain years) meant for the release years in all countries, or just for the year the game was first released? For example, Luigi's Mansion was first released in 2001 in Japan and North America, but not until 2002 in Europe and Australia. Does that mean that it is both a 2001 and a 2002 game?
 * Well, I can't see anywhere that states that the categories are only for the year a game was first released, so Luigi's Mansion should be in both categories.