Year annual % growth 1996 8.745580934937664 1997 5.815568608770221 1998 2.9638381916957286 1999 4.647106661397913 2000 7.648813023184118 2001 5.749999712611256 2002 6.804684613529616 2003 6.992949948069366 2004 9.335453462177924 2005 8.86157622971038 2006 11.212205754050373 2007 12.102528407840254 2008 5.377505136054822 2009 3.683149480804971 2010 7.847989008600791 2011 5.129646872861613 2012 7.01185632369355 2013 4.623527543495115 2014 5.495653147101848 2015 3.5137241994795545 2016 4.4246372305493935 2017 6.006192676877873 2018 3.7647507604054766 2019 3.562943469824205 2020 -1.102979979830664 2021 5.601764136751015