67% (2007)

68% (2018)

72% (2019)

62% (2008)

52% (2005)

73% (1986)

65% (2000)

72% (2014)

69% (1986)

55% (2014)

60% (1975)

66% (2006)

64% (1989)

58% (2003)

69% (2004)

62% (2013)

80% (1961)

70% (2020)

65% (2017)

64% (2022)