Year	Percent of GDP
1997	13.848
1998	13.249
1999	15.977
2000	16.707
2001	16.181
2002	17.14
2003	35.692
2004	23.359
2005	20.806
2006	19.333
2007	17.272
2008	23.835
2009	27.56
2010	27.926
2011	29.611
2012	33.509
2013	38.901
2014	37.843
2015	36.981
2016	38.597
2017	40.816
2018	41.64
2019	41.922
2020	41.961
2021	42.263
2022	42.503
2023	42.862
2024	43.183