54% (1998)

59% (2002)

62% (2000)

59% (2001)

68% (1997)

70% (1992)

61% (2004)

46% (2003)

53% (1995)

52% (2002)

57% (2003)

56% (1996)

49% (1998)

78% (2001)

66% (2001)

72% (1997)

75% (2002)

50% (1999)

68% (1996)

67% (1997)