63% (2004)

67% (2004)

68% (2013)

70% (2002)

61% (2008)

63% (2011)

66% (2001)

70% (2007)

58% (2004)

68% (2007)

45% (2006)

50% (2003)

55% (1996)

65% (1999)

65% (2004)

62% (2004)

66% (2010)

67% (2005)

67% (2002)

62% (2001)