4-6 April 2017
23-25 February 2016
3-5 March 2015
10-12 March 2014
28-30 January 2013
6-9 December 2011
8-12 November 2010
30 Nov.-4 Dec. 2009
17-21 September 2007
23-25 October 2006
12-16 September 2005
8-9 September 2004
8-9 September 2003
8-9 July 2002