Year	thousand metric tons of CO2 equivalent
1990	4555.7942
1991	4269.6248
1992	4368.233
1993	4576.8032
1994	4479.4168
1995	4322.4006
1996	4482.367
1997	4477.748
1998	4360.6042
1999	4323.384
2000	4364.2398
2001	4278.3562
2002	4247.5728
2003	4210.2036
2004	4244.7418
2005	4145.2396
2006	4075.299
2007	4166.3082
2008	4317.6624
2009	4063.7664
2010	4220.3356
2011	4314.0268
2012	4187.496
2013	4258.3604
2014	4451.822
2015	4511.3028
2016	4470.3576
2017	4610.1494
2018	4451.6134
2019	4661.167
2020	4843.2152