62% (1996)

75% (1997)

67% (1997)

65% (1995)

57% (2002)

63% (2008)

59% (2008)

50% (1999)

57% (1999)

65% (1992)

57% (1999)

59% (2004)

58% (1999)

66% (1996)

55% (1998)

54% (1992)

66% (2006)

61% (2003)

63% (1996)

60% (1994)