Year	Percent of GDP
1997	50.652
1998	64.41
1999	52.614
2000	43.508
2001	26.899
2002	19.078
2003	13.35
2004	9.008
2005	5.379
2006	3.334
2007	2.416
2008	2.809
2009	2.436
2010	4.035
2011	10.048
2012	18.066
2013	19.985
2014	16.813
2015	21.816
2016	24.068
2017	28.82
2018	29.272
2019	30.25
2020	30.346
2021	30.135
2022	30.02
2023	30.324
2024	30.098