57% (2007)

68% (2008)

70% (2013)

68% (2007)

71% (2017)

76% (2003)

62% (2002)

62% (2006)

60% (2006)

67% (2007)

58% (2006)

76% (2009)

62% (2004)

60% (2011)

59% (2018)

61% (2009)

62% (2013)

61% (2008)

54% (2010)

63% (2003)