63% (1976)

64% (1997)

59% (1988)

63% (1992)

61% (1985)

67% (1985)

64% (1991)

67% (2018)

64% (1987)

61% (2015)

62% (1998)

67% (1975)

75% (1999)

60% (1997)

63% (1999)

72% (2000)

68% (1971)

41% (1991)

72% (2019)

70% (2019)