45% (1999)

41% (2003)

45% (1998)

65% (1997)

56% (1985)

52% (2005)

44% (2002)

51% (1996)

72% (1987)

71% (2006)

73% (2002)

0% (1996)

74% (1999)

0% (2002)

61% (1999)

63% (2002)

90% (2008)

70% (1999)

72% (1990)

59% (1994)