Session 9 (Geneva, 24 September 2010)	9	2010-09-24
Session 10 (Geneva, 1 February 2011)	10	2011-02-01
Session 11 (Geneva, 16 September 2011)	11	2011-09-16
Session 12 (Geneva, 16-17 February 2012)	12	2012-02-16
Session 13 (Geneva, 29 June 2012)	13	2012-06-29
Session 14 (Geneva, 18 February 2013)	14	2013-02-18
Session 15 (Geneva, 23 January 2017)	15	2017-01-23
Session 16 (Moscow, 7-9 June 2017)	16	2017-06-07
Session 17 (Brussels, 2-3 November 2017)	17	2017-11-02
Session 18 (Ottawa, 12-14 June 2018)	18	2018-06-12
Session 19 (Geneva, 11-12 September 2018)	19	2018-09-11
Session 20 (Brussels, 29-31 October 2018)	20	2018-10-29
Session 21 (Geneva, 21-22 January 2019)	21	2019-01-21
Session 22 (Brussels, 4-5 March 2019)	22	2019-03-04
Session 23 (Garching, 8-9 May 2019)	23	2019-05-08
Session 24 (Web conference, 11 June 2019)	24	2019-06-11
Session 25 (Geneva, 9 September 2019)	25	2019-09-09