Year	Percent of GDP (Units)
1988	47.570
1989	46.284
1990	46.570
1991	47.594
1992	49.003
1993	54.009
1994	54.019
1995	55.821
1996	55.629
1997	52.276
1998	54.054
1999	50.305
2000	50.654
2001	51.357
2002	52.430
2003	49.926
2004	53.704
2005	51.154
2006	50.378
2007	49.242
2008	49.871
2009	54.141
2010	52.835
2011	50.892
2012	51.213
2013	51.648
2014	52.322
2015	51.027
2016	50.071
2017	49.299
2018	48.758
2019	48.674
2020	56.806
2021	56.180
2022	53.177
2023	51.573
2024	52.110
2025	51.609
2026	51.244
2027	51.228
2028	51.159
2029	51.155