55% (1997)

68% (1994)

50% (2005)

59% (1996)

68% (1997)

0% (1998)

70% (1999)

62% (2003)

66% (2003)

20% (2003)

54% (2004)

0% (1998)

53% (1993)

60% (1992)

36% (2005)

60% (2007)

40% (2002)

0% (1994)

0% (2001)

0% (2004)