63% (1981)

60% (1998)

64% (2018)

72% (1995)

74% (2002)

56% (2001)

67% (1996)

64% (2009)

67% (2007)

53% (1996)

55% (2016)

67% (1996)

59% (2009)

73% (1997)

55% (2000)

76% (1996)

65% (1995)

59% (2001)

62% (2000)

71% (1994)