55% (2015)

70% (2017)

69% (2013)

61% (2010)

68% (2014)

64% (2009)

74% (2015)

68% (2012)

70% (2010)

57% (2010)

66% (2009)

62% (2015)

75% (2006)

54% (2015)

59% (2006)

54% (2010)

54% (2009)

54% (2005)

0% (1994)

0% (2004)