Year annual % 2002 33.75606991078055 2003 38.5350352991115 2004 33.73515049150902 2005 36.13530415673734 2006 40.388720991488064 2007 41.09787889560374 2008 14.129346966484006 2009 17.316465942260052 2010 24.510362491179468 2011 19.584646966713827 2012 13.058390291337119 2013 16.031323647677276 2014 14.827649878106545 2015 19.717033018252327 2016 -0.924467735122182 2017 7.41111146041277 2018 12.319109665594114 2019 5.103938659578904 2020 16.656413911723007