Year	% of GDP
1977	47.100281251450625
1978	45.85445821475009
1979	45.771386022513965
1980	48.51116615466195
1981	51.74771967097411
1982	52.869837371081914
1983	54.93536036577681
1984	57.6810459818635
1985	63.24129518687024
1986	71.69509911620112
1988	68.20981365451475
1989	71.41673824566838
1990	76.36318534543518
1991	78.26664029755285
1992	79.34820850524179
1993	87.23390095757294
1994	81.03019835496524
1995	80.87513660742279
1996	87.61953966200592
1997	95.54371402546477
1998	101.55988614760629
1999	104.90662995593458
2000	105.46950501122667
2001	104.95429329161286
2002	111.03744181603867
2003	118.10732782136007
2004	112.20470019525665
2005	105.94904318583342
2006	103.6389584049639
2007	101.5347484326008
2008	98.23578712516581
2009	111.07212700578509
2010	111.36978546522559
2011	110.09635333068138
2012	116.10295037523915
2013	122.15721680589598
2014	128.05351257536552
2015	139.68299756654375
2016	142.3087215393332
2017	141.4007553070185
2018	144.85422829319938
2019	150.70766587445192
2020	167.3047678575355
2021	164.28088064519207
2022	170.34049352748636
2023	177.99046644466446