Year annual % 1985 16.28925102172034 1986 19.7294144116336 1987 28.93001013437643 1988 40.08404426040624 1989 21.250295108267363 1990 26.365756350737858 1991 36.890189583413004 1992 21.09977012537623 1993 6.9116365328631275 1994 12.703693303852855 1995 13.44524109085363 1996 7.040426968992251 1997 5.179690447265809 1998 3.1269369652696803 1999 6.78272477846512 2000 -1.3688780865203976 2001 7.810158415449125 2002 8.09321310250065 2003 12.258270674435163 2004 8.872970490983503 2005 12.164630776845927 2006 24.511366459183673 2007 9.844603453604698 2008 2.290485102273996 2009 11.825137953277538 2010 14.52200336465556 2011 22.591723431420913 2012 25.831017882216905 2013 17.731137101327246 2014 10.435016534675706 2015 -3.003822001647956 2016 12.614766832125564 2017 11.078513041072858 2018 10.141996585668046 2019 5.536634933996233 2020 0.7036618493873266 2021 -0.6959294532769701 2022 4.388200094286868 2023 1.096381725414534