67% (2001)

66% (2007)

20% (1999)

72% (2000)

65% (2001)

0% (2007)

70% (2004)

66% (2004)

57% (1990)

71% (2006)

100% (2000)

60% (2000)

65% (2003)

55% (1993)

50% (1994)

0% (1995)

46% (2002)

50% (1991)

45% (1992)

0% (1998)