Year	Percent of GDP (Units)
1980	36.903
1981	38.940
1982	39.501
1983	38.972
1984	38.819
1985	38.712
1986	39.485
1987	39.682
1988	40.251
1989	40.535
1990	42.179
1991	43.078
1992	43.308
1993	42.543
1994	42.076
1995	42.245
1996	42.811
1997	43.502
1998	43.549
1999	43.429
2000	43.197
2001	41.632
2002	40.160
2003	40.149
2004	39.902
2005	40.074
2006	40.488
2007	40.339
2008	38.960
2009	39.539
2010	38.326
2011	38.267
2012	38.402
2013	38.466
2014	38.545
2015	39.957
2016	40.300
2017	40.343
2018	41.022
2019	40.572
2020	41.413
2021	42.519
2022	41.143
2023	41.847
2024	41.069
2025	41.077
2026	41.117
2027	41.112
2028	41.070
2029	41.139