64% (2004)

64% (2001)

60% (2001)

60% (1998)

69% (2003)

61% (1992)

64% (2002)

63% (2010)

67% (1995)

61% (2004)

69% (1998)

60% (2006)

64% (2001)

74% (2002)

73% (2002)

54% (2010)

52% (1994)

58% (1999)

58% (1995)

63% (1993)