65% (2005)

69% (2010)

64% (1971)

65% (2016)

67% (1965)

72% (2021)

69% (2013)

62% (2021)

69% (2001)

72% (1999)

55% (2006)

69% (1982)

76% (2020)

54% (2014)

72% (2003)

71% (2016)

51% (2005)

75% (1995)

65% (1994)

0% (1970)