45% (2004)

54% (1998)

59% (2000)

72% (1994)

67% (2001)

65% (1990)

75% (1993)

65% (1996)

67% (1997)

20% (2003)

54% (1995)

50% (2002)

0% (1998)

70% (2004)

68% (1991)

75% (1999)

63% (1996)

75% (2000)

47% (2004)

70% (1992)