68% (2003)

62% (2004)

58% (1989)

59% (2015)

65% (2010)

54% (1971)

53% (2016)

38% (1977)

56% (2010)

81% (1996)

68% (2021)

58% (2016)

55% (2001)

61% (1976)

63% (1986)

54% (1969)

50% (2019)

55% (1967)

66% (1995)

66% (1980)