71% (2023)

51% (1995)

60% (1971)

40% (1989)

68% (1998)

52% (1981)

59% (1969)

68% (1990)

57% (1979)

70% (1999)

57% (1992)

45% (2010)

67% (1971)

56% (1983)

57% (1983)

60% (1980)

62% (2000)

60% (1976)

67% (1995)

63% (1995)