Year % 1996 34.13337 1999 35.43388 2000 34.21463 2001 0.1956358 2002 0.3468149 2003 0.2645767 2006 0 2007 0.31268 2010 0.9896679 2011 0.92198 2012 0.0970363 2013 0.0970363 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0