55% (2004)

66% (2005)

67% (2000)

0% (1996)

65% (2001)

0% (1978)

40% (1997)

80% (2007)

60% (1999)

70% (2007)

70% (2002)

0% (2001)

70% (1994)

70% (1999)

0% (1995)