Year annual % 1996 84.4751248507283 1997 116.44385511489885 1998 2.809448665790126 1999 7.715094690437763 2000 24.878469770085157 2001 -99.86368063669785 2002 25.38351257454129 2003 53.82543215743161 2004 1.0182133505858284 2005 45.360883415093774 2006 31.45129201201446 2007 34.28034817610273 2008 36.86671681990127 2009 8.209650792043096 2010 21.212378316111838 2011 10.306522027700005 2012 18.175197561666216 2013 17.778434557400264 2014 17.774840755643705 2015 14.333836826076496 2016 -4.813054381186505 2017 -0.21811852737293 2018 15.166228409624313 2019 -2.07863461805061 2020 10.604573891626078 2021 -2.5961835985869963 2022 9.036517518582563