69% (2005)

65% (2002)

68% (1997)

56% (2001)

70% (2000)

67% (2005)

60% (1997)

69% (1996)

0% (1996)

44% (2003)

100% (2004)

63% (2004)

0% (1993)

20% (1998)

67% (2004)

60% (2004)

0% (2004)

70% (1994)

62% (2003)

0% (1993)