context: The San Antonio Spurs and the Lakers, developed what some would classify as a rivalry in the late 1990s and early 2000s. Since 1999, the teams have met in the NBA Playoffs five times, with the clubs combining to appear in seven consecutive NBA Finals (1999-2005). Additionally, the teams combined to win five NBA championships from 1999 to 2003. The Spurs won the NBA championship in 1999, 2003, 2005, 2007 and 2014 while the Lakers won the championship in 2000, 2001, 2002, 2009 and 2010. From 1999 to 2004 the clubs rivalry was often considered the premier rivalry in the NBA, and each time the clubs faced each other in the playoffs the winner advanced to the NBA Finals. In 2008 the teams met again in the Western Conference Finals where the Spurs were handily defeated only to beat LA when they met again in 2013 (though against a Lakers team without an injured Kobe Bryant).
question: How many combined championship wins did the Spurs and the Lakers have from the years 1999-2014?
answer: 10