Year annual % growth 1971 0.8556884466451464 1972 6.851728548508262 1973 7.524200201198354 1974 4.878197744289054 1975 0.44494671467279545 1976 -2.7233889448569926 1977 -1.6063505607349526 1978 2.468130794002292 1979 -0.6772835673788649 1980 0.03995293070988737 1981 1.9926254213272045 1982 -0.909549679916239 1983 2.992005473229753 1984 3.3504836225972667 1985 1.4268137676739485 1986 3.2415013485978648 1987 2.3752084483037947 1988 2.1896852495158328 1989 2.178084575303103 1990 0.6971086285962258 1991 -1.9750094321485676 1992 0.5754910711499122 1993 3.087315408900622 1994 4.666794951844139 1995 4.0929818676659835 1996 4.091186238779272 1997 2.8035899460204377 1998 2.5957970016916647 1999 2.7993221130628143 2000 1.4201479738315612 2001 3.086715183100381 2002 4.149442440355074 2003 5.792032083759224 2004 5.151419080651735 2005 5.131868437030278 2006 3.1708364504329865 2007 4.023973760999098 2008 0.5326133143404661 2009 0.925636385284804 2010 2.118218383657535 2011 2.8094613542823907 2012 1.6716874531503834 2013 3.3508806363079913 2014 3.2093179571631936 2015 3.7317759446124086 2016 5.338424286230577 2017 4.555200839735349 2018 4.284155221750268 2019 3.177979628981163 2020 2.049779506149463 2021 6.100712134692515 2022 2.5022224052733293