Year annual % growth 1996 7.0546442087105845 1997 8.616705870227335 1998 6.685153717883765 1999 3.7131540912545233 2000 1.3908901311795034 2001 6.511520843505991 2002 5.693150040193103 2003 3.2934936828506096 2004 3.2372019527667817 2005 8.286324637815085 2006 6.704599709821537 2007 8.192957099924598 2008 5.778794671879368 2009 4.721217529173558 2010 17.963825985187114 2011 9.031502089479446 2012 7.771186032464712 2013 5.662118187300152 2014 7.879376481475589 2015 4.323211564204186 2016 8.49122291170363 2017 8.2726859763725 2018 9.777960475220283 2019 7.48169039015832 2020 4.0710456972205264 2021 0.589740385046639