Year	Percent of GDP (Units)
1980	43.618
1981	46.944
1982	52.518
1983	58.485
1984	62.005
1985	67.188
1986	69.046
1987	71.393
1988	73.799
1989	73.844
1990	75.126
1991	74.920
1992	75.696
1993	76.773
1994	73.601
1995	73.138
1996	71.385
1997	65.806
1998	62.766
1999	58.697
2000	52.176
2001	49.523
2002	48.864
2003	50.007
2004	50.312
2005	49.781
2006	45.183
2007	42.990
2008	54.697
2009	56.770
2010	59.251
2011	61.699
2012	66.220
2013	67.680
2014	67.873
2015	64.647
2016	61.900
2017	56.950
2018	52.435
2019	48.549
2020	54.670
2021	51.577
2022	50.082
2023	47.173
2024	47.723
2025	48.201
2026	48.908
2027	49.764
2028	51.097
2029	52.585