Year % 2002 9.182991 2005 7.573667 2007 73.24254 2008 67.65318 2009 69.00347 2011 71.77248 2012 6.732632 2013 70.447 2014 70.74332 2015 62.09655 2019 7.723505 2020 5.676306 2021 8.954324