Year annual % 1988 60.2817826333536 1989 80.7881406436234 1990 33.0019778318026 1991 57.5952847505663 1992 69.5836363993793 1993 48.1081660687068 1994 15.1763474313441 1995 45.3653083621856 1996 50.7340549612119 1997 49.1009235769531 1998 8.01375518965603 1999 -2.08630513223527 2000 8.63632094930278 2001 3.34812265527109 2002 3.30012175283749 2003 -3.5025855110342 2004 0.883302696930943 2005 3.32919922802856 2006 1.95473717628916 2007 4.61743772241997 2008 10.4600731354706 2009 -1.65139733620775 2010 2.51785140171697 2011 5.04610226320204 2012 2.13054580274493 2013 1.20712555668414 2014 -1.50924460570503 2015 1.47672048910494 2016 1.50312055861088 2017 1.69111461822289 2018 0.381324702791081 2019 0.24660026814783 2020 1.14000939393213 2021 2.24248879577659 2022 9.39383877456591