70% (1976)

52% (1991)

54% (2007)

54% (1999)

62% (2017)

62% (1992)

68% (1993)

60% (2015)

59% (2023)

57% (1991)

47% (2023)

67% (1989)

57% (1993)

69% (1990)

62% (1991)

64% (1992)

64% (1988)

42% (1992)

25% (1992)

43% (2001)