63% (1993)

34% (1978)

61% (1985)

56% (1997)

58% (1989)

63% (1986)

52% (1987)

61% (1999)

59% (1983)

60% (2006)

64% (1986)

57% (2014)

64% (2005)

64% (2001)

58% (1987)

55% (2002)

62% (2001)

63% (2004)

55% (2005)

70% (2024)