80% (2010)

78% (2014)

81% (1982)

80% (1999)

50% (2005)

83% (1989)

78% (2003)

57% (1988)

81% (2010)

50% (1955)

53% (1971)

82% (2005)

83% (1997)

81% (2005)

55% (1992)

61% (2003)

83% (2013)

70% (1993)

68% (1993)

87% (1999)