53% (2011)

65% (1986)

54% (1988)

44% (2004)

62% (2018)

50% (2006)

17% (1986)

20% (1994)

54% (2004)

60% (1997)

45% (1999)

60% (1988)

69% (1998)

45% (1990)

64% (2002)

60% (1989)

47% (1984)

35% (1999)

20% (1980)

56% (1971)