Session 15 (Brussels, 21-23 February 2017)	15	2017-02-21
Session 16 (Brussels, 22-24 March 2017)	16	2017-03-22
Session 17 (Tokyo, 16-18 May 2017)	17	2017-05-16
Session 18 (Brussels, 13-15 June 2017)	18	2017-06-13
Session 19 (Brussels, 12-14 July 2017)	19	2017-07-12
Session 20 (Brussels, 4-6 October 2017)	20	2017-10-04
Session 21 (Brussels, 18-21 December 2017)	21	2017-12-18