1999-200021.57%40.31%53.85% 2000-200129.55%54.83%66.74% 2001-200235.14%59.12%73.16% 2002-200324.56%33.76%45.54% 2003-200431.90%43.69%56.80% 2004-200534.57%79.83%88.99% 2005-200630.95%81.02%88.13% 2006-200778.00%73.39%86.68% 2007-200867.20%78.67%83.75% 2008-200954.60%53.00%75.50% 2009-201060.00%77.00%82.00% 2010-201177.17%81.55%88.36% 2011-201281.18%84.86%90.68% 2012-201373.45%87.38%92.31% 2013-201484.09%88.85%95.06% 2014-201589.83%90.17%95.02% 2015-201693.44%91.38%96.51%