Year	Percent of GDP (Units)
1980	23.127
1981	23.133
1982	22.900
1983	23.750
1984	25.115
1985	24.051
1986	24.783
1987	24.406
1988	26.678
1989	28.523
1990	26.743
1991	25.628
1992	25.180
1993	25.175
1994	26.208
1995	27.421
1996	27.333
1997	28.852
1998	25.915
1999	26.721
2000	24.308
2001	24.992
2002	23.338
2003	25.643
2004	27.882
2005	27.501
2006	30.109
2007	30.235
2008	27.297
2009	26.136
2010	27.156
2011	28.575
2012	28.919
2013	28.261
2014	26.085
2015	27.679
2016	27.601
2017	29.511
2018	30.277
2019	29.016
2020	26.898
2021	33.646
2022	30.503
2023	30.244
2024	29.226
2025	29.038
2026	28.893
2027	28.850
2028	28.740
2029	28.749