Year	% of GDP
1999	3.9161649942398054
2000	3.5112099647522
2001	3.708529949188235
2002	3.22557997703552
2003	3.45890498161316
2004	3.44770002365112
2005	3.7031300067901602
2006	3.75944495201111
2007	3.560179948806765
2008	3.9387800693512
2009	4.0983099937439
2010	3.90093207359314
2011	3.89854001998901
2012	4.051515102386475
2013	4.233668088912966
2014	3.91899991035461
2015	4.15499997138977
2016	4.02162003517151
2017	3.951154947280885
2018	3.75143003463745
2019	3.73721492290497
2020	4.21099996566772
2021	3.68318998813629
2022	3.51972007751465