Year % 1997 10.95795267951865 1998 6.230650638053616 1999 12.746613421860877 2000 12.263792349828089 2001 10.083883806220907 2002 9.169880498075518 2003 6.999114166808441 2004 5.00662804674494 2005 5.490036197848504 2006 -2.2332855507965585 2007 3.453389477555903 2008 -11.807661627891639 2009 5.898580861026566 2010 0.8759556374875402 2011 2.646406244255612 2012 3.9901970998534675 2013 2.700469425785872 2014 5.3600068575924835 2015 6.172976266492208 2016 6.6622530294973314 2017 6.493960189535199 2018 6.246632809854858 2019 7.755620047741492 2020 8.247403900222444 2021 4.708471174452505 2022 4.646953873456222