61% (1978)

59% (1980)

49% (1988)

56% (2010)

44% (1993)

30% (1997)

51% (2013)

42% (2002)

50% (1991)

65% (1987)

45% (1983)

77% (2020)

69% (2019)

83% (2015)

67% (1979)

33% (2000)

37% (2009)

52% (2015)

58% (2024)

66% (2020)