Year	Percent of GDP
1997	24.948
1998	23.649
1999	23.663
2000	26.17
2001	30.011
2002	29.639
2003	32.027
2004	33.292
2005	33.911
2006	33.117
2007	32.053
2008	33.262
2009	36.591
2010	36.736
2011	38.209
2012	39.181
2013	38.997
2014	37.829
2015	36.551
2016	36.17
2017	35.51
2018	34.995
2019	33.914
2020	32.925
2021	31.906
2022	30.819
2023	29.626
2024	28.359