Year annual % 1996 8.918534904853075 1997 8.421633151045668 1998 6.349392854723135 1999 7.0147628084437486 2000 7.741072064618464 2001 7.306969966739203 2002 8.817410315305224 2003 9.764492221812745 2004 9.824327905593606 2005 10.252664568007646 2006 12.66502973027987 2007 14.108345648944336 2008 9.523416082652986 2009 7.994273912463683 2010 9.80366131028147 2011 8.392830609422148 2012 7.910939350794294 2013 6.42102013137719 2014 7.774745610794014 2015 5.768351190336588 2016 6.215941091262238 2017 6.7005907463477286 2018 5.920910349968807 2019 5.749193248004843 2020 1.4630517021517022 2021 8.46514845440312 2022 3.080691613056999