Year	% of GDP
1980	4.806605842269489
1981	4.87146861271649
1982	5.02123947275503
1983	4.955137030449223
1984	4.946116245791666
1985	4.90293136113671
1986	4.7253682254752
1987	4.481451355593748
1988	4.282012019673567
1989	4.206601007925041
1990	3.841140340407128
1991	3.230720348160136
1992	3.069366546478091
1993	2.891642297651706
1994	2.900369676039753
1995	2.8891220926665104
1996	2.553932307453254
1997	2.4700711044811405
1998	2.3113421168142576
1999	2.1301889075440252
2000	1.9428598954135352
2001	1.944937375460862
2002	1.8996773319539888
2003	1.85862963191743
2004	1.8277545638214199
2005	1.253767802707871
2006	1.3622204539368057
2007	1.5784220477923838
2008	1.5674687662374391
2009	1.4366836497547113
2010	1.6494099336212054
2011	1.6704824827885902
2012	1.5471458577227453
2013	1.4665400187460547
2014	1.4432981944684464
2015	1.4495583820564397
2016	1.3987444255770798
2017	1.4435382286284344
2018	1.3927866212290605
2019	1.3921248315962056
2020	1.3293538720954372
2021	1.2880935551943495
2022	1.4669053316299232
2023	1.6026267319028522