Year	Percent of GDP (Units)
1980	17.124
1981	15.129
1982	17.132
1983	18.617
1984	18.606
1985	21.750
1986	22.765
1987	23.259
1988	22.390
1989	20.233
1990	23.810
1991	21.925
1992	21.888
1993	21.486
1994	19.252
1995	17.752
1996	20.315
1997	21.217
1998	21.470
1999	19.071
2000	18.435
2001	24.980
2002	23.625
2003	25.003
2004	25.731
2005	25.955
2006	25.618
2007	31.293
2008	32.594
2009	28.135
2010	28.149
2011	26.795
2012	23.862
2013	26.112
2014	24.997
2015	28.032
2016	27.996
2017	28.293
2018	27.058
2019	27.000
2020	27.454
2021	28.020
2022	26.584
2023	28.051
2024	27.548
2025	27.798
2026	28.410
2027	28.826
2028	29.355
2029	29.861