Year	Percent of GDP
1980	21.622
1981	20.231
1982	20.216
1983	21.169
1984	21.849
1985	22.217
1986	23.769
1987	22.971
1988	24.13
1989	25.444
1990	24.433
1991	24.161
1992	23.77
1993	22.574
1994	22.334
1995	22.498
1996	22.061
1997	22.275
1998	22.631
1999	22.059
2000	22.174
2001	21.951
2002	21.805
2003	21.099
2004	23.578
2005	23.41
2006	25.454
2007	27.499
2008	26.455
2009	23.808
2010	25.241
2011	27.184
2012	26.325
2013	26.238
2014	27.087
2015	28.136
2016	28.168
2017	28.063
2018	28.559
2019	28.165
2020	28.324
2021	28.364
2022	28.53
2023	28.627
2024	28.692
