Year % of GDP 1970 87.34758243502935 1971 96.69074482261398 1972 106.63105688068869 1973 107.43298406967999 1974 99.76570799214244 1975 102.32360755939258 1976 102.62996277966934 1977 94.5151718315532 1978 99.36671195651292 1979 98.32370057796494 1980 99.69749587600175 1981 102.32875084729143 1982 103.41124865807697 1983 108.42251873986476 1984 110.09424045500934 1985 114.59657348255854 1986 127.06258530142466 1987 141.87704930561569 1988 148.40287089497735 1989 152.45881531577947 1990 155.979209355864 1991 156.41955952491162 1992 159.33184276182075 1993 164.6370424801667 1994 164.59286694708402 1995 160.89363324905491 1996 156.77673057281123 1997 164.475312087306 1998 172.39107258968727 1999 176.00374928498354 2000 169.74896881251675 2001 151.25239927696748 2002 149.6750431257099 2003 150.79293795877 2004 143.70533634499833 2005 139.3107166990805 2006 135.79064025592476 2007 129.80333833205444 2008 127.63573249723547 2009 134.45748032975825 2010 130.8054485912895 2011 128.9725359772601 2012 131.13186288471007 2013 133.7852126867285 2014 137.58800595451282 2015 144.25785958537224 2016 147.1200328362469 2017 147.35371403178561 2018 149.32158946072164 2019 155.4029207353634 2020 171.51346940115732 2021 169.4156014674267 2022 173.05809612921303 2023 177.62609440722449