Year	kt
1990	5264009.600000001
1991	5220795.1
1992	5305993.399999999
1993	5417257.3
1994	5503567.6
1995	5565082.9
1996	5735187
1997	6020165.300000001
1998	6075328.1
1999	6103295.8
2000	6290022.3
2001	6254877.7
2002	6117377.800000001
2003	6203533.8
2004	6274703.3
2005	6302525.9
2006	6193606.6
2007	6307951.3
2008	6108932.100000001
2009	5677824.300000001
2010	5929200.9
2011	5722961.100000001
2012	5502344.6
2013	5647839.600000001
2014	5668969.1
2015	5549450.9
2016	5451373.3
2017	5387541
2018	5554874.300000001
2019	5383712.2
2020	4837406.2