Year	% of GDP
1975	6.110603542408632
1976	6.489026311583747
1977	6.8489224820207655
1978	7.0718306931267625
1979	7.288953340984655
1980	7.636705132061445
1981	7.676475619961205
1982	7.495705001230487
1983	7.106284916082461
1984	6.980502635912323
1985	6.831824126484164
1986	6.902904081007743
1987	7.164941020437957
1988	7.216229881081442
1989	7.283911238987505
1990	7.741112030040795
1991	7.882344325634667
1992	8.21516121772645
1993	8.284793953605218
1994	8.226153956722985
1995	8.46310818507396
1996	7.824465570497643
1997	8.249529425550557
1998	8.532154499378986
1999	8.90303994649798
2000	9.240687083782323
2001	9.36943614803043
2002	9.777686357051897
2003	9.772255425947334
2004	10.503575636042823
2005	11.051959532840364
2006	11.465147470507745
2007	12.092655576873828
2008	12.450062219440102
2009	11.777719620494633
2010	11.779142671783765
2011	11.88999519557481
2012	12.016024266429739
2013	12.353110794591196
2014	12.86976173156563
2015	13.048313514799062
2016	12.98703507062414
2017	13.251254176263862
2018	13.58455420755282
2019	13.758635544613979
2020	11.76364779550029
2021	12.171930934269277
2022	13.472802370523638
2023	13.904217489692828