Year	Percent of GDP (Units)
1980	17.722
1981	18.292
1982	19.733
1983	18.171
1984	19.238
1985	23.516
1986	25.600
1987	26.281
1988	28.952
1989	30.599
1990	41.539
1991	34.783
1992	34.451
1993	34.903
1994	35.590
1995	35.045
1996	34.692
1997	32.204
1998	32.644
1999	30.015
2000	30.051
2001	27.959
2002	26.578
2003	27.116
2004	27.792
2005	26.384
2006	28.055
2007	31.423
2008	28.546
2009	28.513
2010	28.724
2011	29.334
2012	26.792
2013	25.356
2014	26.777
2015	29.271
2016	31.614
2017	32.565
2018	30.839
2019	30.847
2020	27.938
2021	26.597
2022	24.653
2023	23.842
2024	22.721
2025	23.025
2026	22.470
2027	22.889
2028	22.916
2029	23.166