Year	Percent of GDP (Units)
1999	46.017
2000	47.549
2001	39.206
2002	41.141
2003	42.571
2004	41.193
2005	44.109
2006	46.432
2007	42.800
2008	40.509
2009	38.343
2010	34.630
2011	37.042
2012	38.034
2013	39.326
2014	40.429
2015	32.992
2016	34.825
2017	33.529
2018	30.560
2019	28.328
2020	25.671
2021	29.031
2022	28.725
2023	28.684
2024	28.724
2025	28.573
2026	27.960
2027	28.334
2028	28.308
2029	28.189