59% (1992)

50% (2006)

61% (2005)

70% (1995)

68% (1952)

75% (2013)

53% (2008)

42% (1991)

60% (1998)

65% (1979)

65% (1974)

0% (2003)

44% (1999)

50% (2001)

38% (2005)

32% (1997)

60% (1964)

65% (2003)

65% (2002)

40% (1998)