Year	% of GDP
2000	1.9626090486061392
2001	1.9593299142977982
2002	1.8969837097828897
2003	1.9648710001243619
2004	1.994581731176593
2005	2.0196140828992935
2006	2.071372098230436
2007	2.1025320487183956
2008	2.2200422549764873
2009	2.4714674837240604
2010	2.4058615574336124
2011	2.446163501033979
2012	2.509189833339083
2013	2.590182928212908
2014	2.6584148327583845
2015	2.769787221097487
2016	2.7304707112793873
2017	2.721958566117269
2018	2.6887124093622012
2019	2.7087271344568573
2020	2.900762223035187
2021	2.8102364312523918