90% (2007)

64% (2010)

54% (2015)

63% (2021)

62% (2007)

62% (2004)

54% (2003)

68% (2012)

60% (2016)

59% (2016)

61% (1979)

67% (1975)

69% (2015)

69% (2015)

59% (2009)

54% (2006)

56% (1994)

51% (2010)

44% (2014)

55% (1992)