72% (2013)

77% (2008)

69% (2006)

72% (2003)

75% (2006)

62% (2013)

54% (2007)

70% (2012)

80% (2004)

58% (2009)

61% (2021)

70% (2005)

61% (2006)

59% (2019)

62% (2001)

0% (1970)

67% (2010)

66% (2010)

72% (2016)

69% (2012)