53% (2008)

75% (2013)

44% (1999)

60% (1964)

68% (2000)

65% (2002)

67% (2003)

40% (1998)

60% (1995)

80% (1999)

15% (1986)

61% (2004)

60% (1977)

80% (2008)

52% (1981)

62% (2001)

60% (1989)

100% (2004)

55% (1978)

20% (2006)