Year	% of GDP
1991	1.1235629008109163
1992	0.799069085682755
1993	0.9860071607887994
1994	1.2958408575841893
1995	22.83901737396554
1996	21.849091161069246
1997	21.967189168078214
1998	22.10734739868062
1999	20.92459031917042
2000	19.686161469105887
2001	19.22107825183922
2002	19.634315021386804
2003	19.829203197556936
2004	20.232659630687277
2005	19.100312343795043
2006	19.959274607504053
2007	20.222989178807044
2008	19.302067918380867
2009	21.521023140909445
2010	19.823957542390144
2011	19.243873212715567
2012	19.952075947990817
2013	20.16722310402361
2014	20.747371862228608
2015	21.64006428659436
2016	21.77469007366685
2017	20.941809328623012
2018	20.959212986985744
2019	21.151035674227117
2020	20.717475472004484
2021	21.63632890484721
2022	21.007722082881077