Year	Percent of GDP
1997	21.073
1998	17.539
1999	21.782
2000	24.289
2001	28.13
2002	27.758
2003	30.146
2004	31.411
2005	32.03
2006	31.236
2007	30.172
2008	31.381
2009	34.71
2010	34.855
2011	36.328
2012	37.3
2013	37.116
2014	35.948
2015	34.67
2016	34.288
2017	33.629
2018	33.114
2019	32.033
2020	31.044
2021	30.025
2022	28.938
2023	27.745
2024	26.478