56% (1988)

20% (1980)

54% (2004)

20% (1986)

51% (2011)

49% (1984)

65% (1986)

45% (1990)

20% (1994)

56% (1993)

44% (2004)

62% (2018)

45% (1999)

61% (1995)

60% (1989)

46% (1969)

50% (2006)

35% (1971)

64% (2002)

45% (1998)