Year annual % 1996 4105.572817758888 1997 71.9443089642937 1998 57.64813438571335 1999 528.1943258393818 2000 303.735498573204 2001 163.00310391083764 2002 156.34068045984543 2003 68.09831435555583 2004 48.55196533383553 2005 60.70599438445304 2006 59.850925252962696 2007 49.42143639114714 2008 104.56612415768993 2009 21.475680880004674 2010 5.28780092808811 2011 37.14695602916858 2012 4.8981874452368 2013 14.146595646458232 2014 16.189197247202806 2015 11.776313427523608 2016 13.468242209045489 2017 0.6254490023757837 2018 20.42805983492898 2019 30.11411805394183 2020 24.3007654229535 2021 -9.322347297444592 2022 -1.4131682528651193 2023 37.764907420284