Year % 1999 4.439895 2000 3.985929 2001 4.368999 2002 0.9277799 2003 0.8455066 2004 0.8316932 2005 0.0050893 2006 0.0064565 2007 0.0036198 2008 0.005827 2009 0.0055379 2010 0.8577862 2011 0.6037297 2012 0.6037297 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0