Year	% of GDP
1990	24.100324801833498
1991	25.36632215830475
1992	25.533798417673946
1993	25.135033472237655
1994	23.749071936886658
1995	23.43038475459374
1996	22.345127082669443
1997	20.371046262246455
1998	20.174389366097525
1999	19.756091027336574
2000	18.77451826885087
2001	18.711004905922493
2002	17.96308412506796
2003	18.037333571363675
2004	17.26591721044168
2005	17.823987934492283
2006	17.02769124680771
2007	16.96278032022109
2008	17.083353449524452
2009	18.85417104192998
2010	19.084707144940776
2011	17.850268000629065
2012	17.51751992797743
2013	17.084882157908876
2014	16.402049830141607
2015	17.059778682322822
2016	17.49860407112597
2017	17.606595407637247
2018	17.540900454091656
2019	18.105709678102563
2020	28.57147360580331
2021	22.665638508726033
2022	18.496535549671577