Year	Percent of GDP (Units)
1998	17.136
1999	17.546
2000	18.115
2001	17.318
2002	19.140
2003	19.071
2004	20.249
2005	22.911
2006	21.620
2007	20.331
2008	20.178
2009	23.616
2010	25.867
2011	24.281
2012	24.728
2013	27.673
2014	27.472
2015	31.907
2016	32.651
2017	33.776
2018	30.872
2019	28.816
2020	29.164
2021	27.642
2022	27.954
2023	28.754
2024	29.622
2025	31.078
2026	31.598
2027	31.652
2028	30.682
2029	30.218