Year % 1995 0 2000 2.54 2001 2.98 2002 6.34 2003 6.19 2006 0.9 2007 0.69 2008 1.24 2009 1.7 2010 0.95 2011 0.72 2012 0.67 2013 0.67 2014 0.69 2015 1.58 2016 0.95 2017 0.63 2018 0.9 2019 3.83 2020 1.09 2021 1.39