Year	Percent of GDP (Units)
1997	44.195
1998	45.093
1999	47.718
2000	48.545
2001	51.352
2002	54.711
2003	55.139
2004	48.966
2005	42.563
2006	27.758
2007	16.976
2008	15.654
2009	14.793
2010	18.355
2011	17.959
2012	19.491
2013	22.080
2014	24.768
2015	28.022
2016	31.285
2017	33.640
2018	34.947
2019	37.595
2020	46.330
2021	50.419
2022	49.861
2023	49.929
2024	49.718
2025	48.576
2026	46.826
2027	44.930
2028	42.897
2029	40.277