67% (2009)

72% (2004)

53% (2007)

78% (2012)

51% (2006)

59% (2004)

75% (2013)

59% (2009)

61% (2011)

74% (2012)

78% (2017)

58% (2013)

20% (2008)

100% (1998)

60% (1998)

0% (2011)

56% (2009)

66% (2016)

66% (2017)

95% (2020)