51% (2011)

61% (2001)

63% (2004)

67% (2008)

63% (2001)

57% (2009)

59% (2011)

68% (2015)

68% (2007)

61% (2015)

61% (2001)

44% (2009)

63% (2007)

60% (2003)

67% (2008)

62% (2014)

58% (2005)

45% (2017)

40% (2008)

47% (2011)