67% (1985)

62% (2005)

67% (2018)

56% (1981)

57% (1984)

60% (1974)

63% (2007)

56% (2017)

70% (1994)

60% (1989)

65% (1997)

67% (2013)

69% (2024)

73% (1972)

53% (2015)

60% (2010)

47% (2013)

65% (2005)

67% (2003)

32% (2003)