Year	% of GDP
1987	31.804118879541292
1988	33.14362529859332
2001	68.96770833462992
2002	70.80437066217222
2003	76.81062195290495
2004	78.29319129586172
2005	95.91735686386713
2006	100.88215078570846
2007	102.21981573857228
2008	101.21757289929728
2009	104.24661397932715
2010	99.47859491737097
2011	94.99224606205755
2012	90.33605605925104
2013	88.70610996634186
2014	84.3996515490357
2015	83.235423451101
2016	82.25373116754481
2017	78.67805427951981
2018	69.8718735613755
2019	65.19375007264273
2020	72.87352607096204
2021	66.37652359328074
2022	58.88805405497601
2023	57.10382428529514