Year	Percent of GDP (Units)
1980	31.215
1981	34.345
1982	34.171
1983	35.294
1984	37.695
1985	31.777
1986	28.061
1987	24.688
1988	22.065
1989	25.302
1990	25.096
1991	24.640
1992	27.774
1993	28.563
1994	26.552
1995	24.870
1996	23.751
1997	24.911
1998	25.279
1999	25.720
2000	26.502
2001	26.649
2002	26.352
2003	24.155
2004	23.216
2005	22.653
2006	23.748
2007	24.271
2008	24.684
2009	25.748
2010	25.836
2011	25.037
2012	26.097
2013	23.868
2014	23.865
2015	21.739
2016	20.475
2017	21.295
2018	22.964
2019	19.803
2020	12.731
2021	15.264
2022	14.153
2023	12.225
2024	12.200
2025	12.538
2026	13.521
2027	13.107
2028	12.272
2029	11.095