Year % GDP 1972 9.140833988985051 1973 12.36293892003541 1974 17.115652801154123 1975 19.323434228060158 1976 20.49242658423493 1977 17.855095332018408 1978 14.213518764699867 1979 12.640826099970068 1980 11.289551876781275 1981 15.116416249304395 1982 12.88072341036314 1983 12.02550841855582 1984 12.666273548307005 1985 8.558429005870012 1986 8.297221903779281 1987 7.922109410516745 1988 6.640473137846891 1989 7.0043694828238285 1990 9.384531397335639 1991 11.85936078788069 1992 14.687296379702557 1993 14.228140914387016 1994 13.990257639095377 1995 11.893443747998353 1996 10.090040893831175 1997 9.6855105359072 1998 12.155947441217151 1999 13.873169462253662 2000 14.711133084328617 2001 16.58616021069111 2002 19.280159024872155 2003 19.97736212429872 2004 21.935704704551025 2005 19.76342857292605 2006 20.936231035362965 2007 23.46175582179702 2008 26.302258810867094 2009 29.356438624473117 2010 27.514927743841632 2011 27.8535285319926 2012 32.910460856068376 2013 33.19446227705283 2014 32.58369282140034 2015 35.99436797689342 2016 32.690644779712756 2017 33.95222130587535 2018 34.739663317142316 2019 35.93715490104725 2020 39.728427065710314 2021 34.53062079682938 2022 29.888027073117808 2023 30.083627498998805