Year	Percent of GDP (Units)
2000	20.024
2001	22.159
2002	20.870
2003	20.655
2004	21.091
2005	23.995
2006	19.252
2007	23.718
2008	22.978
2009	23.964
2010	22.718
2011	26.285
2012	29.801
2013	30.231
2014	33.952
2015	37.071
2016	31.027
2017	31.785
2018	33.145
2019	34.469
2020	47.080
2021	50.176
2022	47.121
2023	45.393