Year	Percent of GDP (Units)
1989	16.063
1990	28.754
1991	15.790
1992	18.617
1993	14.995
1994	18.646
1995	19.266
1996	20.684
1997	16.935
1998	19.890
1999	23.185
2000	19.946
2001	23.529
2002	19.238
2003	19.900
2004	19.140
2005	19.665
2006	23.330
2007	24.419
2008	32.297
2009	24.695
2010	22.872
2011	18.909
2012	25.624
2013	25.565
2014	36.021
2015	28.896
2016	21.962
2017	17.708
2018	14.860
2019	15.276
2020	13.879
2021	17.399
2022	17.348
2023	16.026
2024	16.126
2025	16.156
2026	16.161
2027	16.150
2028	16.203
2029	16.221