Rollercoaster was released in June 2010 to mark the 10th anniversary of the Ardbeg Committee. It consists of ten vintages from 1997 to 2006. They are: 1997 Cask: second-fill - 9.5% (of blend) 1998 Cask: refill hogshead - 12.2% 1999 Cask: first-fill barrel - 14.2% 2000 Cask: first-fill barrel - 10.9% 2001 Cask: refill barrel - 6.2% 2002 Cask: refill barrel - 8.9% 2003 Cask: first-fill barrel - 11.7% 2004 Cask: first-fill barrel - 10.6% 2005 Cask: second-fill sherry butt - 10.4% 2006 Cask: refill hogshead - 5.4%