72% (1997)

55% (2023)

78% (2012)

70% (2024)

58% (1968)

62% (2006)

60% (2013)

61% (2015)

80% (1973)

70% (2013)

55% (1993)

65% (2013)

65% (2003)

54% (2006)

65% (2023)

71% (2002)

76% (1993)

74% (1999)

63% (1995)

72% (2021)