60% (1989)

56% (2003)

42% (1983)

64% (1997)

50% (1973)

25% (1984)

30% (1999)

63% (1997)

80% (1953)

70% (1985)

55% (1990)

41% (2001)

57% (1974)

45% (2005)

65% (1979)

60% (1975)

0% (1995)

38% (1987)

0% (1990)

70% (2021)