Year	% of GDP
1995	21.64670216585598
1996	20.61993360000502
1997	20.85658406540607
1998	21.12815033634383
1999	19.66749642537726
2000	20.00637221174529
2001	19.915155594098852
2002	19.198341292995774
2003	18.391356337348093
2004	17.811613023676767
2005	18.888784866798144
2006	19.486313073459982
2007	20.228135093102726
2008	20.51748013330172
2009	19.52902204720147
2010	19.349329843590482
2011	20.20802693367197
2012	20.099207780109108
2013	21.236118437676055
2014	21.8956905184484
2015	22.77519420137068
2016	22.065210935517005
2017	22.121611431166443
2018	22.249329296758063
2019	22.579105759629822
2020	22.69349733520889
2021	22.311445682808465
2022	21.459310851184345
2023	21.757058223438854