			2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	
Science			1	1	1	1	1	1	1	1	1	1	1	1	2	
Humanities		3	3	3	2	2	2	2	2	2	2	2	2	1	
Computing		4	4	2	3	3	3	3	3	3	3	3	4	5	
Miscellaneous		2	2	4	4	4	4	4	5	4	4	5	5	3	
Language		5	5	5	5	5	5	5	4	5	5	4	3	4	
Entertainment		6	6	6	6	6	6	6	6	6	6	6	6	6	
Mathematics		7	7	7	7	7	7	7	7	7	7	7	7	7	 
