54% (1995)

63% (1999)

62% (1986)

66% (2007)

66% (2021)

61% (2023)

52% (1998)

70% (1986)

61% (2004)

55% (2005)

68% (1987)

73% (1995)

67% (1984)

69% (1981)

70% (1962)

57% (2016)

69% (2007)

69% (1987)

52% (2009)

60% (2010)