Year	% of GDP
1995	50.422596961941515
1996	52.578191350742046
1997	52.200018933378935
1998	52.43942877599977
1999	53.78787988162348
2000	53.5587072799781
2001	54.279282515404084
2002	55.13868888065515
2003	56.28938888464846
2004	55.648234613220794
2005	56.64785300162336
2006	56.635747670505566
2007	57.78622389899216
2008	57.81467626978684
2009	58.786888017169005
2010	59.86088402910392
2011	60.19034951943835
2012	59.75226409847934
2013	59.26513915362863
2014	59.431490247602966
2015	59.19576606986969
2016	59.0533050714706
2017	59.38986229730242
2018	59.128295556788515
2019	59.04394481986821
2020	59.222860036225185
2021	58.75132150072644
2022	60.55872330459407
2023	61.18713090169192
