Year	Percent of GDP (Units)
1980	26.727
1981	25.666
1982	23.124
1983	19.627
1984	18.399
1985	19.997
1986	23.906
1987	24.909
1988	24.858
1989	23.058
1990	24.133
1991	22.958
1992	23.529
1993	26.200
1994	21.414
1995	24.047
1996	22.614
1997	23.012
1998	23.881
1999	21.339
2000	23.718
2001	18.025
2002	21.108
2003	22.309
2004	24.982
2005	26.804
2006	29.349
2007	28.601
2008	28.739
2009	22.816
2010	26.753
2011	31.003
2012	28.073
2013	29.619
2014	28.967
2015	28.199
2016	28.020
2017	30.694
2018	29.458
2019	24.878
2020	31.341
2021	31.404
2022	35.040
2023	29.406
2024	26.460
2025	25.314
2026	25.184
2027	25.491
2028	25.839
2029	26.192