69% (2017)

65% (2010)

67% (1992)

65% (2020)

65% (2018)

65% (2016)

68% (1994)

52% (2002)

70% (2007)

69% (1999)

67% (2007)

65% (1994)

67% (2007)

67% (2007)

52% (1980)

57% (1984)

67% (2008)

65% (1997)

60% (1975)

58% (2013)