0% (1970)

68% (2016)

67% (2017)

70% (2002)

74% (2010)

62% (2007)

61% (2013)

63% (2006)

67% (2003)

59% (2018)

59% (2004)

63% (2014)

65% (2000)

68% (2004)

72% (2017)

42% (2005)

61% (2011)

69% (2007)

56% (2003)

75% (2017)