70% (2024)

72% (2007)

67% (2005)

75% (2002)

73% (1992)

69% (2015)

66% (2013)

61% (1988)

66% (2017)

64% (2015)

60% (1988)

64% (2006)

62% (2013)

68% (2007)

67% (2008)

65% (2012)

59% (1999)

64% (2010)

70% (1999)

52% (2015)