60% (1999)

62% (2008)

53% (2004)

82% (1995)

68% (1994)

69% (1995)

69% (1993)

68% (2000)

72% (2009)

66% (1999)

68% (1999)

56% (2007)

62% (2002)

66% (1997)

50% (1993)

55% (2002)

65% (2011)

62% (2007)

66% (1997)

53% (2006)