Year	Percent of GDP (Units)
1980	33.133
1981	28.870
1982	25.998
1983	25.353
1984	27.248
1985	26.883
1986	26.773
1987	26.917
1988	25.657
1989	26.486
1990	26.704
1991	26.970
1992	26.292
1993	25.361
1994	26.187
1995	26.768
1996	26.338
1997	26.214
1998	26.106
1999	26.118
2000	25.927
2001	25.161
2002	23.643
2003	24.409
2004	24.061
2005	23.825
2006	23.610
2007	24.584
2008	24.467
2009	22.775
2010	22.608
2011	24.141
2012	23.977
2013	23.723
2014	23.532
2015	23.806
2016	24.256
2017	24.838
2018	25.726
2019	25.349
2020	25.627
2021	27.660
2022	27.555
2023	25.447
2024	24.475
2025	24.255
2026	24.085
2027	24.048
2028	24.051
2029	24.040