72% (1964)

80% (1995)

54% (2011)

65% (1990)

68% (2012)

60% (2003)

50% (2004)

66% (1984)

64% (2005)

64% (1991)

61% (2013)

56% (2001)

63% (1998)

66% (1989)

56% (2012)

67% (1989)

60% (2016)

65% (2023)

53% (1998)

70% (1993)