Year	Percent of GDP (Units)
1980	24.667
1981	26.570
1982	28.727
1983	24.394
1984	25.771
1985	27.682
1986	23.224
1987	21.471
1988	21.372
1989	24.113
1990	25.759
1991	23.199
1992	23.306
1993	22.602
1994	21.648
1995	20.814
1996	19.770
1997	21.009
1998	23.513
1999	21.306
2000	21.846
2001	23.115
2002	22.723
2003	24.538
2004	26.256
2005	25.363
2006	25.957
2007	31.352
2008	37.226
2009	33.057
2010	32.191
2011	34.074
2012	32.651
2013	32.919
2014	30.511
2015	29.994
2016	31.747
2017	31.456
2018	31.941
2019	30.421
2020	28.620
2021	30.368
2022	30.115
2023	29.408
2024	30.026
2025	30.572
2026	31.190
2027	31.717
2028	32.353
2029	32.884