67% (2011)

73% (2015)

77% (2006)

61% (2013)

54% (1993)

69% (2017)

54% (1969)

25% (1981)

79% (2001)

87% (1987)

43% (1999)

54% (1997)

55% (2014)

40% (2017)

72% (1997)

53% (2015)

50% (2013)

65% (1977)

68% (2020)

66% (2016)