- 11th December 2018: Special Sub-Group
- 9th October 2018: Special Sub-Group
- 11th September 2018: Special Sub-Group
- 22nd May 2018: Special Sub-Group
- 13th February 2018: Special Sub-Group
- 18th December 2017: Special Sub-Group
- 15th August 2017: Special Sub-Group
- 11th July 2017: Special Sub-Group
- 20th June 2017: Special Sub-Group
- 23rd May 2017: Special Sub-Group
- 7th March 2017: Special Sub-Group
- 14th February 2017: Special Sub-Group
- 17th January 2017: Special Sub-Group
- 13th December 2016: Special Sub-Group
- 8th November 2016: Special Sub-Group
- 11th October 2016: Special Sub-Group
- 13th September 2016: Special Sub-Group
- 23rd August 2016: Special Sub-Group
- 26th July 2016: Special Sub-Group
- 12th July 2016: Special Sub-Group