Year % 1996 6.612264668145037 1997 0.9457562226537852 1998 13.194466821904328 1999 4.6941588785979995 2000 12.789841154223705 2001 16.812809295796065 2002 22.624781092810423 2003 -3.6296859160911077 2004 4.40401067447798 2005 6.1893739865719635 2006 13.082212088044766 2007 2.7122180269500338 2008 1.5706644921019186 2009 8.936892848898767 2010 13.38698080182437 2011 8.840288204674586 2012 11.438581516525128 2013 14.246295488239678 2014 11.960755143120863 2015 16.76595443884766 2016 11.674303011657457 2017 8.328386366587177 2018 17.656522286978664 2019 13.717361816572677 2020 9.027252509539156 2021 12.94832811224955 2022 0.4059033136731982 2023 5.3821538485376905