60% (2002)

70% (2004)

74% (2001)

62% (2017)

60% (2006)

63% (2006)

68% (2004)

62% (2007)

67% (2004)

69% (2006)

69% (2003)

51% (2005)

73% (2003)

62% (2003)

72% (2003)

72% (2002)

65% (2007)

59% (2006)

60% (2003)

52% (2001)