Year annual % growth 1996 11.185128308213365 1997 8.732487770807708 1998 7.401328214964067 1999 7.5723746517554815 2000 8.208473250918686 2001 10.409117034702959 2002 11.298700067765736 2003 11.10399669934499 2004 10.118439109823171 2005 12.150328903709223 2006 13.774806903478904 2007 14.684730324289191 2008 6.028967463614563 2009 12.441070796065674 2010 8.237746931493135 2011 4.5307641983318945 2012 10.192677487883131 2013 5.754007696664786 2014 8.33728768704293 2015 7.228581242674139 2016 7.370806475764027 2017 7.0186407300279825 2018 4.105669347329496 2019 4.229650064622788 2020 0.21000770148529568 2021 7.421746388209826