61% (1994)

58% (1991)

75% (2018)

65% (2014)

72% (2016)

64% (2002)

50% (1995)

64% (1985)

77% (1983)

62% (1997)

66% (1998)

68% (1998)

72% (1996)

55% (1987)

60% (2002)

56% (1997)

53% (1997)

68% (1986)

81% (2013)

53% (1992)