Year annual % growth 1961 6.563480103871001 1962 6.197764981406323 1963 3.5409795324687536 1964 6.403387646189046 1965 13.118662450022867 1966 5.443096977989256 1967 6.66819679475114 1968 7.2844675458868124 1969 2.465563065473148 1970 9.876661595702643 1971 7.8807397730887345 1972 7.865370302150623 1973 6.970073294967577 1974 6.845858899954479 1975 0.2728092663838595 1976 9.215081102954287 1977 6.9983039797457 1978 3.7016561657996903 1979 7.781954467056494 1980 16.432539341641686 1981 -0.4716826796208693 1982 -0.33625322961235327 1983 -3.136439809776718 1984 2.798934426433462 1985 2.642484914015057 1986 5.405318374800785 1987 -1.0061335340377298 1988 -2.1027206055612737 1989 1.609671212409097 1990 4.80724217099548 1991 4.549408874819875 1992 2.2118298760233728 1993 2.258875792679845 1994 5.140452313958434 1995 2.9898221583723767 1996 3.616349665286748 1997 5.351983186145873 1998 2.558486078923309 1999 0.6595740261519296 2000 4.600687181400787 2001 0.6544051029680844 2002 0.03834780790515424 2003 1.9283243864380637 2004 3.985631396088422 2005 4.181588686130738 2006 5.8342830897598645 2007 5.104012224912211 2008 4.527226611428304 2009 -0.8814620232507906 2010 6.456395391930258 2011 5.6218858859786 2012 3.2140704572007053 2013 3.5151990902144092 2014 1.686629269014773 2015 0.8032515783235965 2016 -0.3615249477210938 2017 2.551009313336465 2018 1.8242495828898484 2019 1.2260423166862893 2020 -7.5560116373098225 2021 7.771194628311221 2022 5.364230487801748 2023 2.753516996275124