62% (1993)

61% (1987)

62% (1988)

56% (1997)

57% (1998)

60% (1998)

60% (1996)

58% (1995)

54% (1993)

65% (2015)

62% (2008)

57% (1991)

61% (1986)

66% (1989)

64% (1985)

65% (1995)

71% (2022)

73% (1991)

56% (1986)

58% (2007)