Year	Percent of GDP (Units)
1988	30.669
1989	29.604
1990	30.481
1991	33.058
1992	34.049
1993	34.139
1994	33.742
1995	33.690
1996	33.538
1997	32.816
1998	34.642
1999	36.211
2000	35.215
2001	35.628
2002	34.916
2003	34.896
2004	34.826
2005	34.580
2006	34.541
2007	34.306
2008	35.074
2009	37.748
2010	36.946
2011	36.309
2012	36.509
2013	36.358
2014	36.730
2015	37.244
2016	37.257
2017	36.737
2018	36.824
2019	38.861
2020	44.370
2021	41.813
2022	37.557
2023	37.134
2024	36.566
2025	35.268
2026	34.805
2027	34.593
2028	34.410
2029	34.291