69% (1979)

69% (1975)

69% (1985)

59% (2019)

65% (2011)

57% (1984)

61% (1990)

62% (2021)

58% (1997)

61% (1975)

62% (1991)

61% (2002)

36% (2000)

70% (2014)

57% (1995)

57% (1986)

61% (1981)

65% (1986)

60% (1987)

49% (1984)