Year annual % growth 2002 0.8058668983595965 2003 2.9543544286671164 2004 2.8131111696376507 2005 3.3562218012763765 2006 2.4408549576220935 2007 2.925623185195647 2008 4.461290673979093 2009 5.339339406486317 2010 6.308825438392745 2011 6.025714480285657 2012 4.747490737234244 2013 1.9337946058449944 2014 7.376001215722312 2015 0.9698514941189416 2016 -1.9619070794341837 2017 16.868787393666324 2018 6.890217694055536 2019 7.950957627638559 2020 -6.187618852469441 2021 7.425203896123151