Year annual % growth 1996 2.598582117054548 1997 5.075091979567631 1998 3.5758304125140086 1999 6.132026989606999 2000 -0.45972970758467113 2001 4.711734504450789 2002 4.173238898321401 2003 3.2128836572639727 2004 2.9758467235851356 2005 2.6925074554743986 2006 5.026238324106274 2007 6.553340342133069 2008 2.080939827364375 2009 -7.260829867590033 2010 -1.8184153860063645 2011 -0.4922923393437628 2012 -5.164431695649725 2013 -0.4321621999548455 2014 4.4559384667271615 2015 0.3245846995218642 2016 5.068589054680999 2017 6.295174560753523 2018 5.215437742246706 2019 3.4715387386510486 2020 -4.91441364244848 2021 6.874063317122506