72% (1963)

60% (2001)

59% (2021)

70% (1971)

61% (2013)

54% (1996)

64% (2008)

57% (2007)

52% (1976)

55% (2014)

66% (2008)

51% (2003)

64% (2013)

62% (2022)

67% (2007)

65% (2006)

63% (2022)

59% (2014)

68% (2012)

67% (2006)