63% (2007)

72% (2008)

56% (2005)

0% (1992)

61% (2000)

70% (2007)

62% (2004)

58% (2006)

45% (2006)

72% (2005)

67% (2005)

79% (2004)

54% (2000)

72% (2002)

63% (2010)

66% (2007)

0% (2006)

63% (2003)

73% (2005)