Year	% of GDP
1991	3.89144992828369
1992	4.1879301071167
1993	4.1827597618103
1995	4.33025979995728
1996	6.25738000869751
1998	4.94200992584229
1999	4.59181976318359
2000	4.9839301109314
2001	5.31902980804443
2002	5.38735008239746
2003	5.32449007034302
2004	5.35557985305786
2005	5.42574977874756
2006	5.20765018463135
2007	4.86874008178711
2008	5.04239988327026
2009	4.98976993560791
2010	5.10705995559692
2011	4.8610200881958
2012	4.86159992218018
2013	5.021240234375
2014	4.9665699005127
2015	4.81700992584229
2016	4.6591100692749
2017	4.57464981079102
2018	4.60506010055542
2019	4.67881011962891
2020	4.85265016555786
2021	4.92000007629395