63% (1984)

65% (2010)

60% (1996)

66% (2017)

57% (1986)

54% (1988)

55% (1989)

50% (1976)

50% (1989)

52% (1981)

60% (2006)

63% (2001)

61% (1999)

38% (1987)

43% (1979)

41% (1989)

62% (2013)

43% (1994)

63% (1996)

49% (1990)