59% (1994)

90% (2004)

53% (2003)

59% (1999)

47% (1989)

63% (2006)

77% (2002)

57% (2003)

64% (1999)

52% (2000)

60% (2004)

59% (2005)

66% (1996)

65% (1998)

59% (1999)

0% (1970)

69% (2002)

58% (1996)

61% (1994)

0% (2004)