Year annual % growth 1961 3.7862118613128644 1962 4.392686654513639 1963 6.558161222387838 1964 10.813020377414318 1965 39.45956184079148 1966 4.90056570473871 1967 6.653027411117392 1968 6.7695549869219604 1969 6.489108908044216 1970 6.795530861245311 1971 4.398426821646979 1972 7.0431057262067185 1973 6.9420556906667485 1974 3.98353565442207 1975 4.838468501306963 1976 3.730807212896096 1977 2.7639495334341717 1978 6.953189825239065 1979 8.877425386427689 1980 10.305855600948007 1981 7.372582725307481 1982 -2.4726242326754857 1983 -5.358711085039616 1984 3.258173618017807 1985 3.2947836093087943 1986 -2.584762987851363 1987 -0.13354366529321737 1988 1.812772146366612 1989 6.784600229462583 1990 6.0814083088758935 1991 4.889272152724928 1992 3.9076155674367783 1993 0.19548002356764016 1994 5.123528451135357 1995 -6.079438344917875 1996 3.5943730915513044 1997 7.668011600614918 1998 6.842618215122968 1999 4.263357911667185 2000 8.731893309979256 2001 2.82117655279157 2002 1.6572970602608734 2003 2.1212942329639475 2004 2.3286963091345427 2005 2.1435416410649992 2006 4.505066302399882 2007 1.2033293482808745 2008 0.9951817992857741 2009 -7.133002879705742 2010 4.636428034624231 2011 4.666246012147198 2012 2.152738331932852 2013 2.576260219075934 2014 1.9798878279826795 2015 2.686500822368302 2016 1.9262643565854773 2017 1.7231190571388453 2018 1.4630928404481693 2019 1.1676624963898803 2020 -10.637430764333402 2021 8.09136375095649 2022 5.182913485495405 2023 4.327817564169749