Year	% of GDP
1990	19.6942923158989
1991	20.425835704707932
1992	20.617006942859213
1993	19.73034802827705
1994	19.078957336875547
1995	19.388279035762686
1996	19.7191550927272
1997	20.602495327463487
1998	20.66623499929296
1999	20.59197334701171
2000	20.861741148560252
2001	20.160152376292555
2002	19.32466383566211
2003	19.065114581324288
2004	18.69031326830992
2005	18.529685074210047
2006	18.53179328252395
2007	18.695156117287627
2008	17.62087819243953
2009	17.643543638717166
2010	16.896172134502887
2011	16.92549813619922
2012	16.920323663737786
2013	16.952617664669557
2014	16.97922248617347
2015	17.8509094964837
2016	17.865075513457445
2017	18.010446403670677
2018	18.529193906798493
2019	18.27760903852629
2020	19.036750751848885
2021	19.076223132520738
2022	18.163366792391397