Year	% of GDP
1978	0.793234388747387
1979	0.9783714014074609
1980	1.2381104545299213
1981	1.3050642490866529
1986	0.8816076897983633
1987	0.8971123281155351
1988	0.9957511799538088
1989	1.1314744375036072
1990	0.6432938849337296
1991	0.6026194538279307
1992	1.0428629858486906
1993	0.8673186904881885
1994	1.010829782391562
1995	1.190024325147874
1996	1.0372764037207904
1997	1.198377007832232
1998	1.6561935492414277
1999	1.9529429300174241
2000	2.2345723705441083
2001	2.4949733931164815
2002	2.8118770280524226
2003	2.9360891126575956
2004	3.078753569080343
2005	2.606843469035476
2006	2.7210441127685345
2007	2.8164421403813096
2008	2.8168248580788977
2009	2.6724079700240817
2010	2.829641460282612
2011	3.245204296856553
2012	3.2050217624188475
2013	2.9933950834239167
2014	3.1010988928033894
2015	3.5981509765192894
2016	3.2506655528594726
2017	3.385926800260403
2018	3.767468162198992
2019	3.9876312580449533
2020	3.938556143936355
2021	4.154377889430408
2022	4.251308205191375
2023	3.8426861799909453