52% (1984)

65% (2007)

69% (2020)

43% (2021)

56% (1995)

54% (2003)

53% (1994)

63% (2007)

63% (1988)

60% (2016)

58% (2009)

58% (2007)

61% (1982)

63% (2023)

48% (2009)

70% (2007)

71% (1976)

73% (1971)

71% (1964)

69% (2006)