49% (1996)

66% (2007)

66% (2011)

64% (2009)

40% (2005)

61% (2007)

62% (2009)

64% (2006)

68% (2006)

57% (2004)

67% (2005)

66% (2011)

75% (2014)

48% (2002)

54% (1996)

70% (2006)

0% (2008)