Year	Percent of GDP (Units)
1997	51.519
1998	135.193
1999	92.379
2000	55.868
2001	44.438
2002	37.577
2003	28.334
2004	20.828
2005	14.851
2006	9.804
2007	8.033
2008	7.446
2009	9.918
2010	10.105
2011	10.340
2012	11.167
2013	12.348
2014	15.136
2015	15.286
2016	14.849
2017	14.311
2018	13.620
2019	13.748
2020	19.156
2021	16.397
2022	18.488
2023	19.657
2024	20.762
2025	21.880
2026	22.788
2027	23.310
2028	23.696
2029	24.031