68% (1994)

69% (2016)

55% (1993)

50% (1990)

73% (2011)

56% (2014)

71% (1971)

65% (1969)

65% (2007)

66% (2020)

58% (2013)

68% (2010)

65% (2000)

62% (2012)

66% (1996)

70% (2011)

65% (1986)

56% (2007)

50% (1998)

69% (2019)