Session 0 (Geneva, 17 November 2011)	0	2011-11-17
Session 1 (Geneva, 28 June 2012)	1	2012-06-28
Session 2 (Geneva, 28 June 2013)	2	2013-06-28
Session 3 (Geneva, 13 November 2014)	3	2014-11-13
Session 4 (Geneva, 12 November 2015)	4	2015-11-12