Year annual % 1984 8.82339598893776 1985 9.32936112984318 1986 9.68295473116515 1987 7.9347540718007 1988 9.453513390096955 1989 8.81336205065292 1990 9.860851083983576 1991 12.2751729438893 1992 10.141817562151 1993 9.524845370196946 1994 22.45306901812375 1995 11.386907492485449 1996 8.519951959253376 1997 7.217329111917345 1998 6.20904159059565 1999 4.578030153621645 2000 4.01212081070342 2001 4.60374621964682 2002 4.1786723990479 2003 5.687858526581065 2004 4.60133998249787 2005 7.16541759946639 2006 6.69526465773354 2007 7.02551436974771 2008 11.4034270813932 2009 4.4462624422925945 2010 4.763116275254495 2011 6.7167684358854 2012 5.98172132315561 2013 5.00964645344951 2014 3.9924658414898904 2015 3.25472688117631 2016 3.52317317628473 2017 4.18072331871267 2018 3.06735996058356 2019 2.782611636571085 2020 3.582874545593905 2021 4.22278962033194 2022 9.52526628622843 2023 7.12086716935025