Year	Percent of GDP (Units)
1980	21.711
1981	20.717
1982	22.886
1983	23.736
1984	24.419
1985	24.334
1986	24.804
1987	25.582
1988	23.861
1989	22.573
1990	24.864
1991	25.212
1992	25.896
1993	26.797
1994	28.052
1995	36.269
1996	36.925
1997	37.650
1998	38.881
1999	40.361
2000	42.363
2001	40.520
2002	39.773
2003	38.761
2004	38.787
2005	39.374
2006	39.171
2007	40.362
2008	40.669
2009	38.869
2010	41.560
2011	44.612
2012	47.303
2013	48.441
2014	46.914
2015	48.563
2016	50.582
2017	49.785
2018	49.655
2019	48.014
2020	49.683
2021	50.173
2022	50.508
2023	47.124
2024	46.809
2025	46.960
2026	46.088
2027	44.889
2028	43.882
2029	43.689