Year	% of GDP
1996	2.6430299282074
1997	2.72177004814148
1998	2.82745003700256
1999	2.84671998023987
2000	2.8584098815918
2001	2.92348003387451
2002	2.96514010429382
2003	2.99320006370544
2004	2.98125004768372
2005	3.13091993331909
2006	3.2276599407196
2007	3.29257011413574
2008	3.29223990440369
2009	3.19589996337891
2010	3.10494995117188
2011	3.20536994934082
2012	3.17371010780334
2013	3.27895998954773
2014	3.36788010597229
2015	3.24071002006531
2016	3.10665988922119
2017	3.16635990142822
2018	3.21919989585876
2019	3.2182400226593
2020	3.26897001266479
2021	3.29580998420715