Year	Percent of GDP (Units)
1980	31.077
1981	32.246
1982	35.876
1983	36.956
1984	37.772
1985	40.953
1986	40.730
1987	39.655
1988	39.839
1989	41.278
1990	42.277
1991	43.853
1992	45.142
1993	47.624
1994	46.138
1995	45.420
1996	44.237
1997	42.734
1998	42.199
1999	41.013
2000	39.107
2001	38.413
2002	38.637
2003	38.375
2004	38.818
2005	38.481
2006	38.436
2007	39.255
2008	41.443
2009	46.231
2010	46.034
2011	46.155
2012	49.470
2013	46.387
2014	45.333
2015	44.048
2016	42.462
2017	41.313
2018	41.813
2019	42.284
2020	51.900
2021	50.027
2022	47.374
2023	46.434
2024	46.157
2025	45.963
2026	45.984
2027	45.264
2028	45.034
2029	45.048