Year	Percent of GDP (Units)
1996	35.810
1997	37.683
1998	36.159
1999	27.118
2000	22.152
2001	25.607
2002	28.531
2003	26.788
2004	25.714
2005	22.177
2006	18.236
2007	16.062
2008	12.374
2009	13.278
2010	14.757
2011	12.259
2012	13.562
2013	11.758
2014	12.587
2015	37.023
2016	47.904
2017	45.044
2018	42.944
2019	46.555
2020	48.274
2021	42.404
2022	35.753
2023	28.326
2024	25.543
2025	25.679
2026	24.895
2027	24.751
2028	25.795
2029	26.860