2001 | 56.5 | 38.1 | 4.6 | 0.8 | 0 |
2002 | 59.9 | 35.1 | 4 | 1 | 0 |
2003 | 60.2 | 35.3 | 3.7 | 0.8 | 0 |
2004 | 65.6 | 30.5 | 3.1 | 0.8 | 0 |
2005 | 64.4 | 30.7 | 4.2 | 0.7 | 0 |
2006 | 65.2 | 30 | 4.1 | 0.7 | 0 |
2007 | 66 | 29.4 | 4.1 | 0.5 | 0 |
2008 | 68.7 | 26.8 | 4 | 0.5 | 0 |
2009 | 67 | 27.9 | 4.3 | 0.8 | 0 |
2010 | 67.4 | 26.2 | 4.1 | 0.9 | 1.4 |
2011 | 68 | 25.6 | 4.1 | 0.6 | 1.7 |
2012 | 68.4 | 25.2 | 3.6 | 0.7 | 2 |