45% (2004)

53% (2002)

55% (2002)

54% (1998)

59% (2000)

63% (1999)

57% (2000)

47% (2004)

67% (2001)

42% (2000)

55% (2004)

75% (1993)

63% (1997)

47% (2004)

64% (1993)

75% (2000)

48% (2006)

70% (1995)

67% (2003)

65% (1996)