65% (2000)

57% (2004)

65% (2003)

55% (2007)

66% (2001)

59% (2000)

59% (2001)

61% (2000)

60% (2003)

63% (2001)

74% (2006)

68% (2004)

51% (2000)

54% (1998)

60% (2001)

62% (2004)

68% (2005)

57% (1998)