51% (1973)

65% (2011)

49% (1978)

63% (2001)

82% (1960)

63% (1990)

77% (1997)

60% (2021)

79% (2020)

78% (2007)

61% (2017)

68% (1994)

59% (1999)

61% (2003)

68% (2021)

70% (1968)

78% (2004)

75% (2021)

65% (1998)

71% (1998)