Period	Year	20 Combustion of fuels	Annotation 1	21-99 All industrial installations	Annotation 2	Estimate to reflect current scope	Annotation 3	10 Aviation	Annotation 4
First Trading Period	2005	1443	1443	571	571	355	355
First Trading Period	2006	1455	1455	580	580	339	339
First Trading Period	2007	1546	1546	619	619	234	234
Second Trading Period	2008	1494	1494	626	626	140	140
Second Trading Period	2009	1370	1370	509	509	122	122
Second Trading Period	2010	1403	1403	536	536	113	113
Second Trading Period	2011	1372	1372	532	532	107	107
Second Trading Period	2012	1360	1360	507	507	103	103	84	84
Third Trading Period	2013	1320	1320	588	588			53	53
Third Trading Period	2014	1224	1224	589	589			55	55
Third Trading Period	2015	1213	1213	590	590			57	57
Third Trading Period	2016	1167	1167	584	584			61	61
Third Trading Period	2017	1164	1164	591	591			64	64
Third Trading Period	2018	1096	1096	587	587			67	67
Third Trading Period	2019	955	955	575	575			68	68