75% (2011)

69% (2015)

56% (1987)

85% (2008)

61% (1997)

53% (1972)

51% (2004)

72% (2003)

77% (1996)

85% (2011)

87% (2015)

77% (1995)

66% (2018)

67% (1993)

56% (1978)

60% (1964)

82% (2017)

77% (2013)

80% (2017)

79% (2007)