63% (1988)

50% (2005)

43% (1964)

60% (1985)

73% (2004)

40% (2003)

84% (2011)

0% (1974)

56% (1981)

79% (2002)

75% (1971)

37% (2001)

77% (2008)

69% (1982)

38% (2004)

60% (2012)

55% (2007)

60% (2006)

0% (1989)

60% (1987)