Year	Percent of GDP (Units)
1997	31.914
1998	30.558
1999	32.537
2000	34.399
2001	31.480
2002	32.951
2003	35.928
2004	34.491
2005	32.704
2006	30.945
2007	32.026
2008	32.833
2009	30.934
2010	30.100
2011	29.382
2012	29.450
2013	27.837
2014	27.519
2015	28.747
2016	28.405
2017	29.030
2018	28.511
2019	29.438
2020	28.354
2021	29.955
2022	30.286
2023	32.969
2024	33.260
2025	33.398
2026	33.390
2027	33.320
2028	33.286
2029	33.505