Year	Percent of GDP (Units)
1980	32.496
1981	31.121
1982	29.928
1983	27.709
1984	26.665
1985	25.845
1986	28.154
1987	28.182
1988	26.562
1989	27.607
1990	26.569
1991	22.299
1992	17.970
1993	22.193
1994	24.284
1995	23.041
1996	24.700
1997	26.184
1998	28.620
1999	27.077
2000	27.961
2001	26.124
2002	25.495
2003	24.504
2004	27.276
2005	25.868
2006	26.132
2007	24.725
2008	24.950
2009	20.944
2010	21.070
2011	20.676
2012	20.056
2013	21.507
2014	23.927
2015	23.380
2016	21.406
2017	22.925
2018	26.649
2019	28.228
2020	27.138
2021	30.519
2022	33.626
2023	25.520
2024	25.399
2025	26.396
2026	26.720
2027	26.924
2028	27.494
2029	27.795