46% (1999)

60% (2001)

59% (1998)

59% (2001)

62% (2000)

60% (2000)

56% (2003)

65% (2004)

62% (2000)

63% (2002)

42% (1999)

59% (1999)

42% (1998)

52% (2004)

75% (2002)

60% (1997)

54% (2000)

57% (2003)

44% (2000)

61% (2003)