79% (2025)

70% (2008)

75% (2008)

30% (2007)

60% (1997)

79% (2002)

79% (2007)

74% (2004)

80% (1973)

76% (2007)

78% (2013)

76% (2002)

78% (2013)

73% (1993)

78% (2025)

0% (1990)

76% (2013)

72% (2007)

20% (1989)

83% (2003)