Annual % of GDP
1975 12.896886990899942
1976 14.084203636819455
1977 14.719777463328535
1978 14.331960523507584
1979 15.192745693533972
1980 14.617352506903096
1981 16.68881122679842
1982 16.914751050674894
1983 16.57979488196539
1984 16.201924593216308
1985 17.15283470805113
1986 16.822731535188925
1987 17.928300870870782
1988 18.54132906496764
1989 20.065984244859234
1990 21.016304676945396
1991 21.743720989183
1992 22.948320587916523
1993 23.073030189397382
1994 24.888266146755456
1995 25.44312488921681
1996 25.452730333497048
1997 25.990167694027964
1998 24.925021610930305
1999 24.746672387352007
2000 25.142401089598405
2001 25.370098704163293
2002 27.174513084066742
2003 29.004635117167222
2004 31.331757375495254
2005 32.12850582403152
2006 33.839356957669615
2007 34.32966277254713
2008 33.39055261841714
2009 33.40684013772969
2010 34.375809545017354
2011 33.341433873345224
2012 33.55259869593042
2013 32.777028737563896
2014 31.955745031123254
2015 31.15143847205583
2016 30.584009082970862
2017 30.43585613820608
2018 30.058492139160407
2019 28.623737493767482
2020 27.8266896468658
2021 28.885249930711726
2022 28.239199152631127
2023 29.154609620810124