63% (1988)

43% (1964)

56% (1981)

79% (2002)

60% (1985)

40% (2003)

77% (2008)

73% (2004)

75% (1971)

38% (2004)

51% (2016)

37% (2001)

50% (2005)

70% (1989)

55% (2007)

69% (1982)

54% (2010)

60% (2012)

60% (2006)

55% (1993)