75% (2004)

70% (2015)

64% (2013)

59% (2014)

62% (2013)

63% (2004)

60% (2006)

57% (2010)

64% (2002)

67% (2009)

51% (2016)

69% (2015)

69% (2008)

67% (2005)

62% (2008)

60% (1998)

44% (2002)

61% (2011)

49% (2014)

55% (2012)