Year	GHG emission
1990	5665495.482
1991	5566529.956
1992	5387057.243
1993	5288243.014
1994	5262773.011
1995	5313248.204
1996	5420356.713
1997	5320577.221
1998	5273003.349
1999	5160038.16
2000	5167989.027
2001	5216433.549
2002	5174035.522
2003	5260713.396
2004	5255462.428
2005	5215334.885
2006	5204383.14
2007	5145503.692
2008	5035531.627
2009	4673030.848
2010	4782336.903
2011	4623473.127
2012	4557002.337
2013	4467114.842
2014	4282096.215