Task: Question Generation
Input (English): Passage: Final Fantasy Tactics sold nearly 825,000 copies in Japan in the first half of 1997, and ended the year at almost 1.24 million copies sold. Since then, the total number of copies sold in Japan has reached approximately 1.35 million. In the United States it reached an estimated sale of 750,000 units as of year 2004. As of March 31, 2003, the game had shipped 2.27 million copies worldwide, with 1.36 million of those copies being shipped in Japan and 910,000 abroad. Since its release, rumors were circulated that the game was to be re-released by Sony as  a Greatest Hits title, the tentative date being around July 30, 2001. As of August, 2011, the game had sold over 2.4 million copies worldwide.
Output (English): How many years after the original release was the game to be re-released as a greatest hits title?