context: Including revenue from the 2012 and 2017 reissues, Titanic earned $659.4 million in North America and $1.528 billion in other countries, for a worldwide total of $2.187 billion. It became the List of highest-grossing films in 1998, and remained so for twelve years, until Avatar (2009 film) (2009), also written and directed by Cameron, surpassed it in 2010. On March 1, 1998, it became the first film to earn more than $1 billion worldwide and on the weekend April 13–15, 2012—a century after the original vessels foundering, Titanic became the second film to cross the $2 billion threshold during its 3D re-release. Box Office Mojo estimates that Titanic is the List of highest-grossing films in Canada and the United States of all time in North America when adjusting for ticket price inflation. The site also estimates that the film sold over 128 million tickets in the US in its initial theatrical run.
question: How many years was the time span between the two reissues of the Titanic?
answer: 5