Year	Percent of GDP
1997	10.044
1998	9.666
1999	9.262
2000	8.432
2001	8.026
2002	8.449
2003	9.114
2004	10.296
2005	13.2
2006	13.845
2007	15.526
2008	15.067
2009	16.83
2010	19.948
2011	21.98
2012	23.845
2013	20.952
2014	18.938
2015	19.263
2016	18.604
2017	17.653
2018	17.234
2019	16.802
2020	16.808
2021	16.641
2022	16.214
2023	15.819
2024	15.454