59% (2002)

72% (2005)

63% (2002)

65% (2003)

20% (1999)

63% (1995)

74% (1993)

61% (2005)

0% (1984)

67% (2004)

70% (2000)

75% (1988)

50% (1977)

70% (2007)

50% (1982)

50% (1967)

30% (1999)

0% (1974)

60% (1989)

0% (2001)