Year annual % 1971 5.286700917573768 1972 5.094162767716455 1973 3.7149632557382546 1974 -0.2697036039278089 1975 4.599904565203829 1976 5.099700695194542 1977 3.046528776985042 1978 2.4055843883527217 1979 5.056255770308056 1980 8.094365068653417 1981 2.458714579482418 1982 -0.6467908320368139 1983 2.889142505668403 1984 6.188780908614476 1985 4.890784071811979 1986 -3.4553066863012987 1987 -0.08743923581565127 1988 -3.04347424412515 1989 1.65723249159673 1990 2.2660310522706055 1991 1.6742740106060978 1992 1.790476806288737 1993 2.2579357165858625 1994 3.61797589400976 1995 4.178517849709948 1996 6.960653800044071 1997 5.356629246723685 1998 -1.620167592951745 1999 5.749274185386 2000 13.525412774292846 2001 1.460299677477778 2002 -2.1548723176769755 2003 0.7477470626340903 2004 6.505444784100604 2005 9.211097714359681 2006 5.446047466665533 2007 0.6199879121404024 2008 4.590561451283094 2009 -9.744492967836607 2010 2.3844416851630257 2011 3.250771330347064 2012 2.0679255907471514 2013 -0.15514437791493663 2014 0.5793184230462174 2015 -2.985953616327265 2016 -3.0465891776615877 2017 2.7441189009411886 2018 3.911559674939099 2019 -3.6730881452245967 2020 -6.632347292807154 2021 15.819088852477094 2022 25.016882256894817