75% (2001)

59% (2006)

60% (1989)

66% (2003)

65% (2004)

0% (1998)

60% (1990)

60% (2000)

55% (1993)

71% (2006)

100% (2002)

0% (1994)

65% (2001)

70% (2007)

58% (2003)

60% (1990)

0% (1994)

50% (1991)

0% (2001)

50% (2003)