60% (1999)

62% (2008)

83% (1995)

56% (2007)

69% (1995)

67% (1999)

53% (2004)

55% (2002)

62% (2002)

69% (1999)

70% (1993)

68% (2000)

66% (1997)

72% (2009)

66% (1997)

65% (2011)

63% (2007)

68% (1994)

53% (2006)

78% (1991)