Year	Percent of GDP (Units)
1997	13.848
1998	13.249
1999	15.977
2000	16.707
2001	20.351
2002	21.487
2003	48.150
2004	34.346
2005	38.322
2006	36.022
2007	32.907
2008	33.607
2009	36.734
2010	37.311
2011	39.053
2012	42.320
2013	46.715
2014	44.911
2015	44.687
2016	46.591
2017	48.906
2018	50.465
2019	53.579
2020	71.540
2021	63.226
2022	59.547
2023	60.929
2024	59.464
2025	58.715
2026	57.063
2027	55.287
2028	53.306
2029	51.298