Year	Percent of GDP (Units)
1980	28.994
1981	29.785
1982	30.241
1983	32.105
1984	32.227
1985	33.957
1986	34.628
1987	36.282
1988	36.338
1989	38.202
1990	38.263
1991	39.140
1992	40.753
1993	40.533
1994	39.639
1995	38.428
1996	38.184
1997	38.759
1998	39.494
1999	39.740
2000	37.946
2001	37.958
2002	38.321
2003	38.000
2004	38.722
2005	39.713
2006	40.560
2007	41.141
2008	36.870
2009	34.955
2010	36.508
2011	36.415
2012	37.920
2013	38.859
2014	39.223
2015	38.739
2016	38.165
2017	38.197
2018	39.219
2019	39.224
2020	41.784
2021	43.296
2022	42.640
2023	42.798
2024	43.024
2025	42.929
2026	42.816
2027	41.989
2028	41.989
2029	42.027