67% (2003)

67% (2014)

67% (1983)

68% (1989)

64% (1977)

60% (2010)

59% (1990)

57% (2023)

55% (1999)

60% (1979)

43% (1987)

58% (1999)

58% (1980)

61% (1992)

61% (2013)

61% (1991)

55% (2018)

62% (2008)

49% (2004)

59% (1997)