Year % of GDP 1960 100.30096912056823 1961 102.41834528280414 1962 99.40971441421182 1963 100.81634775374376 1964 99.37414709896005 1965 102.36278187384124 1966 103.11295217783612 1967 101.66292630881865 1968 103.31747064261016 1969 101.74029859860165 1970 100.21948245495192 1971 100.43346874071138 1972 99.4163467798056 1973 97.4187073464472 1974 98.5189357542825 1975 99.47231773208898 1976 100.08518500743868 1977 101.11534983316528 1978 101.48108663785717 1979 101.86019486151696 1980 100.21171960895016 1981 102.49346932881764 1982 103.64273244738622 1983 103.01776022638481 1984 101.75865522308433 1985 102.16098006327098 1986 103.79005393553035 1987 103.07103470192385 1988 101.35070184735591 1989 101.41850519313013 1990 101.26984519205821 1991 99.53939242176534 1992 100.25137559624922 1993 100.7043791266059 1994 100.25760215682871 1995 101.96270616280054 1996 100.45276755348611 1997 99.7258674427169 1998 100.8775711085466 1999 102.44030704060907 2000 102.15475482665686 2001 99.91405169903393 2002 99.99576969142542 2003 102.08701693919124 2004 102.6845614282788 2005 102.71189334393726 2006 101.85226869150699 2007 101.64101217329662 2008 102.5491913135401 2009 99.71889291691011 2010 100.91974660777794 2011 98.9656370735297 2012 100.16617228081117 2013 101.30190023057735 2014 100.27836556343553 2015 101.4779659180924 2016 102.27019004952571 2017 99.48498844477992 2018 99.63979945004901 2019 97.52538663269816 2020 96.2083001192181 2021 95.74862571275517 2022 94.28258189001384 2023 94.49244659202539