63% (1999)

65% (2005)

60% (2002)

74% (2000)

60% (2001)

69% (2001)

70% (2004)

54% (2009)

56% (2009)

53% (1993)

50% (2006)

50% (1995)

56% (2006)

60% (2002)

54% (1998)

60% (2001)

61% (1998)

61% (2003)

60% (2001)

49% (2005)