Year % of GDP 1970 43.4542322673313 1971 43.5509010114495 1972 43.7615463301578 1973 51.7813393965075 1974 63.7250762264266 1975 58.2546567012368 1976 56.0746281457364 1977 52.3023768492243 1978 49.6155143971473 1979 79.7407561880243 1980 55.4243207387891 1981 46.9803586575315 1982 37.6829596638167 1983 41.7737554363094 1984 39.3769527935263 1985 40.5551272844964 1986 31.386112510293 1987 41.9005494299817 1988 34.8933019491993 1989 45.4281387750377 1990 50.4824718338721 1991 32.5938448581855 1992 32.5670329025425 1993 32.4067391861547 1994 29.7669582159775 1995 31.8501238195579 1996 37.1448237189533 1997 33.2175926848869 1998 24.2822148573417 1999 32.3229406984525 2000 46.4323533403582 2001 39.6608260982704 2002 36.5156563174369 2003 36.1663480509711 2004 39.6932689656436 2005 46.2910962199201 2006 44.5972509306022 2007 41.3713037014859 2008 40.5020271140744 2009 33.9582915199024 2010 35.1702914756151 2011 43.273814289286 2012 40.4418641958152 2013 38.8455213970653 2014 34.348523798708 2015 21.0999447505156 2016 18.0527768334822 2017 21.3537653208209 2018 27.0144782962431 2019 24.9800297060137 2020 18.8866635649826 2021 29.2115792686173