Year	% of GDP
1991	6.008156633382325
1992	7.168133644204514
1993	5.305342301464467
1994	4.354170830059682
1995	3.9295300169001646
1996	3.2414302255701086
1997	3.2797869271264535
1998	3.166817454836466
1999	2.91291268523612
2000	2.58750731417004
2001	2.8274183420406156
2002	3.4902050508759084
2003	4.1128978582404985
2004	4.000359590481071
2005	4.494080416436341
2006	4.129344662217495
2015	4.769926961453317
2018	5.335052258316003
2019	5.200357783422373
2020	5.733296910589082
2021	5.744675756507613
2022	4.776003026683141
2023	4.866503507595017