69% (1986)

69% (2008)

61% (2015)

42% (2006)

64% (1966)

44% (1995)

60% (2014)

56% (2016)

54% (1973)

70% (2009)

67% (2002)

69% (2009)

65% (2017)

67% (2017)

64% (2019)

47% (2002)

65% (1980)

64% (2013)

68% (1985)

63% (2010)