45% (2004)

54% (2000)

54% (1998)

55% (1998)

70% (2002)

45% (2001)

53% (1995)

50% (1999)

56% (1996)

59% (2000)

61% (2000)

56% (2003)

75% (1993)

47% (2004)

68% (1997)

63% (2006)

71% (1994)

59% (2006)

46% (2003)

50% (2003)