Year	% of GDP
1995	2.25295501947403
1996	2.6866599321365348
1997	3.513270020484925
2000	4.208930015563965
2001	2.69233500957489
2002	2.89222002029419
2004	2.74847006797791
2007	3.06133496761322
2008	3.570144176483155
2009	3.806730985641475
2010	3.75464248657227
2011	3.6510975360870352
2012	3.7704999446868896
2013	3.766999959945675
2014	3.53999996185303
2015	3.58360004425049
2016	3.56997132301331
2017	3.4419999122619602
2018	3.24668502807617
2019	3.08500003814697
2020	3.5313874483108547
2021	3.0162600278854397
2022	3.098193764686585