70% (1985)

61% (2003)

59% (2007)

64% (1995)

69% (2018)

59% (2021)

59% (1994)

54% (1995)

72% (2007)

68% (2007)

62% (2011)

67% (1980)

46% (1987)

62% (2008)

74% (1996)

73% (2004)

70% (2007)

71% (1973)

59% (2006)

61% (1985)