53% (2016)

54% (2012)

51% (2011)

0% (2007)

69% (2010)

64% (2010)

60% (2009)

75% (2007)

59% (2011)

56% (2009)

64% (2005)

58% (2005)

50% (2008)

66% (2010)

73% (2010)

56% (2003)

0% (2009)

58% (2005)

53% (2002)

72% (2009)