Year	% of GDP
1996	0.33753654888875373
1997	0.44714943819097125
1998	0.3371408932035997
1999	0.3120789907495551
2000	0.43964588639248176
2001	5.825102785741435
2002	7.175201795694651
2003	8.127164074074235
2004	6.586078777286539
2005	5.4000164141067915
2006	4.992464212366662
2007	3.8114922378103384
2008	3.521707487799704
2009	3.059743021459925
2010	2.6258581517615487
2011	2.568870832246345
2012	2.6688704602412687
2013	2.984595537136491
2014	2.947525103720021
2015	2.941706933060073
2016	3.086432037633698
2017	3.6985319746360665
2018	3.628484558912742
2019	3.400603434313502
2020	2.9267249372730277
2021	2.3530281638755186
2022	2.2505879351769598
2023	2.4411625940225252