Year annual % growth 1961 11.307413502261625 1962 9.523812416426864 1963 25.507243032208976 1964 6.928408501366775 1965 12.526997149649716 1966 -7.272803376949923 1967 25.55203921109961 1968 2.363459835845134 1969 4.83621802576333 1970 5.508745559856948 1971 8.39369061803572 1972 12.955313267077202 1973 8.381337398295358 1974 -8.85597670628836 1975 17.048386008400925 1976 14.751507454204756 1977 11.354605309404263 1978 16.27216787558588 1979 -7.951436664543692 1980 7.946364420864427 1981 12.496658647746443 1982 -6.213615303331082 1983 22.168735748614907 1984 -2.965574449687537 1985 -4.509510579571 1986 13.59668755601308 1987 -17.072209632298154 1988 -8.873841769462203 1989 21.26189545146066 1990 -3.010105353391765 1991 -0.7395144897322581 1992 -0.4139090424440184 1993 -1.1208598812701354 1994 -7.697992730159697 1995 1.30582070928169 1996 -1.9193794468861824 1997 0.04573956874129692 1998 22.42942299675481 1999 -2.0524884109434822 2000 1.3040962559739455 2001 4.283895206033279 2002 2.341017346979271 2003 0.5417444170228123 2004 2.1136972247957146 2005 4.25649578607721 2006 7.6200089666920405 2007 4.474032398669905 2008 3.7869600538212467 2009 5.43549784815778 2010 7.7206136343946525 2011 8.186692336034724 2012 6.087729221495081 2013 9.365478597385462 2014 4.218669931571142 2015 0.37575477924363554 2016 0.7121653309985163 2017 -0.09190599680512435 2018 -6.466263196705029 2019 2.2014722052989555 2020 -0.11206247049959472 2021 -0.2137719501141504 2022 0.8210630535629377 2023 1.894750539825523