Year % 1981 -0.6612778857758156 1982 3.2128984209042386 1983 5.798910952293609 1984 6.005478356066262 1985 6.808886214332303 1986 4.392506286640703 1987 1.3156876699469773 1988 6.500892201633116 1989 2.895511441553086 1990 7.412015518112636 1991 7.580613714443571 1992 11.181948126643439 1993 3.53751346699769 1994 6.724881380169339 1995 8.893479767203345 1996 7.276866408655619 1997 8.835422974900176 1998 0.9629369749336606 1999 4.751744844200471 2000 11.664643623366153 2001 7.166315765918401 2002 7.52383812960125 2003 7.302639708812186 2004 2.3672239721873582 2005 2.342734993040887 2006 5.9515004098493245 2007 1.9759023787081234 2008 8.080391055403151 2009 11.239521095933698 2010 4.69637831302076 2011 4.9091357581775386 2012 9.359381148980528 2013 5.654791881624812 2014 7.897485529045403 2015 10.051360898869968 2016 8.304124606580272 2017 5.2994903946903955 2018 4.569194511543092 2019 3.634866054356491 2020 6.114073580162192 2021 3.1978886134892197 2022 3.8185565414692815