49% (2007)

64% (1981)

57% (2009)

55% (1993)

53% (1986)

58% (1983)

65% (2003)

45% (2004)

56% (1986)

55% (2016)

69% (1996)

55% (1981)

52% (1981)

56% (2021)

62% (1983)

48% (2013)

64% (1978)

50% (2011)

41% (2011)

63% (1991)