57% (2011)

61% (2007)

57% (2001)

58% (1996)

59% (1990)

63% (1992)

62% (1996)

61% (2003)

56% (1993)

50% (1996)

65% (1991)

71% (2023)

67% (1994)

57% (1999)

56% (1994)

49% (1996)

62% (1989)

53% (2019)

62% (2013)