63% (1994)

58% (2013)

66% (2002)

61% (2002)

67% (1991)

55% (1995)

61% (1996)

61% (1999)

55% (1996)

57% (1988)

50% (1998)

50% (1997)

50% (1993)

50% (2002)

0% (1993)