Year	% of GDP
1996	1.80666995048523
1997	1.88914000988007
1998	2.00619006156921
1999	2.12764000892639
2000	2.18619990348816
2001	2.32466006278992
2002	2.44145011901855
2003	2.51084995269775
2004	2.41915988922119
2005	2.3933699131012
2006	2.40300011634827
2007	2.51540994644165
2008	2.77345991134644
2009	3.05514001846313
2010	2.91706991195679
2011	2.94464993476868
2012	2.98125004768372
2013	2.97047996520996
2014	2.9140899181366
2015	3.05497002601624
2016	3.09282994270325
2017	2.93124008178711
2018	2.96602988243103
2019	2.89685010910034
2020	2.96872997283936
2021	2.81261992454529