69% (2007)

59% (2008)

57% (2005)

63% (1999)

67% (2002)

65% (2005)

59% (2009)

73% (2009)

49% (2000)

61% (2011)

60% (2002)

75% (2002)

63% (2004)

63% (2003)

62% (2009)

72% (2004)

60% (1999)

70% (2013)

70% (2006)

59% (2005)