61% (1967)

41% (1996)

65% (1975)

52% (2017)

61% (2000)

61% (1989)

65% (1984)

64% (1972)

59% (2007)

56% (2006)

60% (2011)

64% (1979)

53% (2001)

50% (2016)

64% (1999)

64% (2023)

67% (1985)

69% (1970)

60% (2005)

61% (1981)